ongoing implementation of ExportXML importer (discoursegraphs branch: exportxml)

initially, I was working on Tueba/D-Z 5.0, but now I have version 8.0 available
the whole corpus is available as a single XML file, which would result in a graph
that is way to large for networkx (ca. 1.7 million edges)

Tueba-D/Z 5.0

I assumed that the corpus could not be split into documents and therefore wrote
a parser using igraph instead of networkx
it turns out that each sentence has a origin attribute, e.g. T990507.2,
which translates into (collection ID: T990507, document id: 2)
all documents within a collection (NB: I will use those terms, Tueba doesn't)
have consequtively numbered token node IDs, i.e. if document 1 contains sentences
1 to 12, document 2 might contain sentences 13 to 43

Tueba-D/Z 8.0

tuebadz-8.0-mit-NE+Anaphern+Diskurs.exml.xml contains bad XML

XMLSyntaxError: ID text_145 already defined, line 4663422, column 20

two text IDs occur twice: text_3160 and text_145



In [8]:

    
import os
from collections import Counter
from operator import itemgetter
from lxml import etree, html
import igraph as ig

import discoursegraphs as dg

TUEBADZ5_FILE = os.path.expanduser(
    '~/corpora/tueba/tuebadz-5.0/data/XML/tuebadz-5.0.anaphora.export.xml')

TUEBADZ8_FILE = os.path.expanduser(
    '~/corpora/tueba/TuebaDZ8.0/tuebadz-8.0-mit-NE+Anaphern+Diskurs.exml.xml')

HTML_PARSER = html.HTMLParser()



In [9]:

    
def add_ns(key, ns='http://www.w3.org/XML/1998/namespace'):
    """
    adds a namespace prefix to a string, e.g. turns 'foo' into
    '{http://www.w3.org/XML/1998/namespace}foo'
    """
    return '{{{namespace}}}{key}'.format(namespace=ns, key=key)

represent the whole corpus in an iterable (over documents)



In [10]:

    
from lxml import etree

class ExportXMLCorpus(object):
    def __init__(self, exportxml_file, parse=True):
        """
        Parameters
        ----------
        exportxml_file : str
            path to an ExportXML formatted corpus file
        parse : bool
            If True, create an iterator that parses the documents
            contained in the file into ExportXMLDocumentGraph instances.
            Otherwise, yield the etree element representations of the <text>
            elements found in the document.
        """
        self.parse = parse
        self.__context = etree.iterparse(exportxml_file, events=('end',), tag='text', recover=True)

    def __iter__(self):
        return iter(self.text_iter(self.__context))

    def next(self):
        # to build an iterable, __iter__() would be sufficient,
        # but adding a next() method is quite common
        return self.__iter__().next()
        
    def text_iter(self, context):
        """
        iterates over all the elements in an iterparse context (here: <text> elements)
        and yields an ExportXMLDocumentGraph instance for each of them.
        afterwards, the elements are removed from the DOM / main memory.
        """
        for _event, elem in context:
            if self.parse:
                yield ExportXMLDocumentGraph(elem)
            else:
                yield elem
            # removes element (and references to it) from memory after processing it
            elem.clear()
            while elem.getprevious() is not None:
                del elem.getparent()[0]
        del context



In [27]:

    
import warnings

import pudb # TODO: remove after debugging

import discoursegraphs as dg
from discoursegraphs import DiscourseDocumentGraph


class ExportXMLDocumentGraph(DiscourseDocumentGraph):
    """
    represents an ExportXML document as a document graph.
    """
    def __init__(self, text_element, name=None, namespace='exportxml',
                 precedence=False):
        """
        creates a document graph from a <text> element from an ExportXML file.
        
        Parameters
        ----------
        text_element : lxml.etree._Element
            a <text> element from an ExportXML file parsed with lxml
        name : str or None
            the name or ID of the graph to be generated. If no name is
            given, the xml:id of the <text> element is used
        namespace : str
            the namespace of the document (default: exportxml)
        precedence : bool
            If True, add precedence relation edges
            (root precedes token1, which precedes token2 etc.)
        """
        # super calls __init__() of base class DiscourseDocumentGraph
        super(ExportXMLDocumentGraph, self).__init__()
        
        self.name = name if name else text_element.attrib[add_ns('id')]
        self.ns = namespace
        self.root = self.ns+':root_node'
        self.add_node(self.root, layers={self.ns}, label=self.ns+':root_node')

        self.sentences = []
        self.tokens = []
        
        self.parsers = {
            'connective': self.add_connective,
            'discRel': self.add_discrel,
            'edu': self.add_edu,
            'edu-range': self.add_edurange,
            'ne': self.add_ne,
            'node': self.add_node_element, # add_node() is already present in graph class
            'relation': self.add_relation,
            'secEdge': self.add_secedge,
            'sentence': self.add_sentence,
            'splitRelation': self.add_splitrelation,
            'topic': self.add_topic,
            'word': self.add_word
        }
        
        self.parse_descedant_elements(text_element)

    def parse_child_elements(self, element):
        '''parses all children of an etree element'''
        for child in element.iterchildren():
            self.parsers[child.tag](child)

    def parse_descedant_elements(self, element):
        '''parses all descendants of an etree element'''
        for descendant in element.iterdescendants():
            self.parsers[descendant.tag](descendant)
  
    def add_connective(self, connective):
        """
        Parameters
        ----------
        connective : etree.Element
            etree representation of a <connective> element
            (annotates connective tokens)

        Example
        -------
          <word xml:id="s29_1" form="Als" pos="KOUS" lemma="als" func="-"
                parent="s29_500" dephead="s29_14" deprel="KONJ">
              <connective konn="als" rel1="Temporal" rel2="enable"/>
          </word>
        """
        word_node_id = self.get_element_id(connective)
        # add a key 'connective' to the token with add rel1/rel2 attributes as a dict and
        # add the token to the namespace:connective layer
        connective_attribs = {key: val for (key, val) in connective.attrib.items() if key != 'konn'}
        word_node = self.node[word_node_id]
        word_node['layers'].add(self.ns+':connective')
        word_node.update({'connective': connective_attribs})
            
    def add_discrel(self, discrel):
        """
        Parameters
        ----------
        add_discrel : etree.Element
            etree representation of a <discRel> element
            Describes the relation between two EDUs.
            The ID of the other EDU is given in the arg2 attribute.
            Note, that arg2 can either reference an EDU (e.g. edu_9_3_2
            or an EDU range, e.g. edus9_3_1-5_0).
        
        Example
        -------

           <edu xml:id="edu_9_3_0">
            <discRel relation="Explanation-Speechact" marking="-" arg2="edus9_3_1-5_0"/>
            <node xml:id="s128_504" cat="SIMPX" func="--">
            ...
            </node>
            <word xml:id="s128_3" form=":" pos="$." lemma=":" func="--" deprel="ROOT"/>
           </edu>

             <edu xml:id="edu_9_3_1">
              <discRel relation="Continuation" marking="-" arg2="edu_9_3_2"/>
              <node xml:id="s128_506" cat="VF" func="-" parent="s128_525">
              ...
              </node>
              ...
             </edu>
        """
        arg1_id = self.get_element_id(discrel)
        arg2_id = discrel.attrib['arg2']
        reltype = discrel.attrib['relation']
        discrel_attribs = self.element_attribs_to_dict(discrel)
        self.node[arg1_id].update(discrel_attribs)
        self.add_layer(arg1_id, self.ns+':discourse')
        self.add_layer(arg1_id, self.ns+':relation')
        self.add_edge(arg1_id, arg2_id,
                      layers={self.ns, self.ns+':discourse', self.ns+':relation'},
                      edge_type=dg.EdgeTypes.pointing_relation,
                      relation=reltype,
                      label='discourse:'+reltype)

    def add_edu(self, edu):
        """
        Parameters
        ----------
        edu : etree.Element
            etree representation of a <edu> element
            (annotates an EDU)
            Note: the arg1 EDU has a discRel child, the arg2 doesn't

        Example
        -------
        <edu xml:id="edu_55_21_1">
         <discRel relation="Explanation-Cause" marking="-|*um zu" arg2="edu_55_21_2"/>
         <word xml:id="s905_9" form="und" pos="KON" lemma="und" func="-" parent="s905_526" dephead="s905_3" deprel="KON"/>
         <node xml:id="s905_525" cat="FKONJ" func="KONJ" parent="s905_526" span="s905_10..s905_19">

        ...

       <edu xml:id="edu_55_21_2" span="s905_14..s905_20">
        <node xml:id="s905_524" cat="NF" func="-" parent="s905_525">
        """
        edu_id = self.get_element_id(edu)
        edu_attribs = self.element_attribs_to_dict(edu) # contains 'span' or nothing
        self.add_node(edu_id, layers={self.ns, self.ns+':edu'}, attr_dict=edu_attribs)
        
        edu_token_ids = []
        for word in edu.iterdescendants('word'):
            word_id = self.get_element_id(word)
            edu_token_ids.append(word_id)
            self.add_edge(edu_id, word_id, layers={self.ns, self.ns+':edu'},
                          edge_type=dg.EdgeTypes.spanning_relation)
        
        self.node[edu_id]['tokens'] = edu_token_ids
    
    def add_edurange(self, edurange):
        """
        Parameters
        ----------
        edurange : etree.Element
            etree representation of a <edurange> element
            (annotation that groups a number of EDUs)            
            <edu-range> seems to glue together a number of `<edu> elements,
            which may be scattered over a number of sentences
            <edu-range> may or may not contain a span attribute
            (it seems that the span attribute is present, when <edu-range> is
            a descendent of <sentence>)

        Example
        -------
    
           <edu-range xml:id="edus9_3_1-5_0" span="s128_4..s130_7">
            <node xml:id="s128_525" cat="SIMPX" func="--">
             <edu xml:id="edu_9_3_1">
              <discRel relation="Continuation" marking="-" arg2="edu_9_3_2"/>
              <node xml:id="s128_506" cat="VF" func="-" parent="s128_525">
               <node xml:id="s128_505" cat="NX" func="ON" parent="s128_506">
                <relation type="expletive"/>
                <word xml:id="s128_4" form="Es" pos="PPER" morph="nsn3" lemma="es" func="HD" parent="s128_505" dephead="s128_5" deprel="SUBJ"/>
               </node>
              </node>

            ...

          <edu-range xml:id="edus37_8_0-8_1">
           <discRel relation="Restatement" marking="-" arg2="edu_37_9_0"/>
           <sentence xml:id="s660">
        """
        edurange_id = self.get_element_id(edurange)
        edurange_attribs = self.element_attribs_to_dict(edurange) # contains 'span' or nothing
        self.add_node(edurange_id, layers={self.ns, self.ns+':edu:range'}, attr_dict=edurange_attribs)
        for edu in edurange.iterdescendants('edu'):
            edu_id = self.get_element_id(edu)
            self.add_edge(edurange_id, edu_id, layers={self.ns, self.ns+':edu:range'},
                          edge_type=dg.EdgeTypes.spanning_relation)

    def add_ne(self, ne):
        """
        Parameters
        ----------
        ne : etree.Element
            etree representation of a <ne> element
            (marks a text span -- (one or more <node> or <word> elements) as a named entity)
        
        Example
        -------
            <ne xml:id="ne_23" type="PER">
             <word xml:id="s3_2" form="Ute" pos="NE" morph="nsf" lemma="Ute" func="-" parent="s3_501" dephead="s3_1" deprel="APP"/>
             <word xml:id="s3_3" form="Wedemeier" pos="NE" morph="nsf" lemma="Wedemeier" func="-" parent="s3_501" dephead="s3_2" deprel="APP"/>
            </ne>
        """
        ne_id = self.get_element_id(ne)
        ne_label = 'ne:'+ne.attrib['type']
        self.add_node(ne_id, layers={self.ns, self.ns+':ne'},
                      attr_dict=self.element_attribs_to_dict(ne),
                      label=ne_label)
        # possible children: [('word', 78703), ('node', 11152), ('ne', 49)]
        for child in ne.iterchildren():
            child_id = self.get_element_id(child)
            self.add_edge(ne_id, child_id, layers={self.ns, self.ns+':ne'},
                          edge_type=dg.EdgeTypes.spanning_relation,
                          label=ne_label)

    def add_node_element(self, node):
        """
        Parameters
        ----------
        node : etree.Element
            etree representation of a <node> element
            A <node> describes an element of a syntax tree.
            The root <node> element does not have a parent attribute,
            while non-root nodes do
        
        Example
        -------
        <node xml:id="s1_505" cat="SIMPX" func="--">
            <node xml:id="s1_501" cat="LK" func="-" parent="s1_505">
            
            # this is the root of the syntax tree of the sentence, but
            # it is not the root node of the sentence, since there might
            # be nodes outside of the tree which are children of the
            # sentence root node (e.g. <word> elements representing a
            # quotation mark)

        """
        node_id = self.get_element_id(node)
        if 'parent' in node.attrib:
            parent_id = self.get_parent_id(node)
        else:
            # <node> is the root of the syntax tree of a sentence,
            # but it might be embedded in a <edu> or <edu-range>.
            # we want to attach it directly to the <sentence> element
            parent_id = self.get_sentence_id(node)
        self.add_node(node_id, layers={self.ns, self.ns+':syntax'},
                      attr_dict=self.element_attribs_to_dict(node),
                      label=node.attrib['cat'])
        self.add_edge(parent_id, node_id, edge_type=dg.EdgeTypes.dominance_relation)

    def add_relation(self, relation):
        """
        Parameters
        ----------
        relation : etree.Element
            etree representation of a <relation> element
            A <relation> always has a type attribute and inherits
            its ID from its parent element. In the case of a non-expletive
            relation, it also has a target attribute.

        Example
        -------

          <node xml:id="s29_501" cat="NX" func="ON" parent="s29_523">
           <relation type="expletive"/>
           <word xml:id="s29_2" form="es" pos="PPER" morph="nsn3" lemma="es"
                 func="HD" parent="s29_501" dephead="s29_14" deprel="SUBJ"/>
          </node>

          ...

         <node xml:id="s4_507" cat="NX" func="ON" parent="s4_513">
          <relation type="coreferential" target="s1_502"/>
          <node xml:id="s4_505" cat="NX" func="HD" parent="s4_507">
          ...
          </node>
         </node>
        """
        parent_node_id = self.get_parent_id(relation)
        reltype = relation.attrib['type']
        # add relation type information to parent node
        self.node[parent_node_id].update({'relation': reltype})
        self.add_layer(parent_node_id, self.ns+':'+reltype)
        if 'target' in relation.attrib:
            # if the relation has no target, it is either 'expletive' or
            # 'inherent_reflexive', both of which should not be part of the
            # 'markable' layer
            self.add_layer(parent_node_id, self.ns+':markable')
            target_id = relation.attrib['target']
            self.add_edge(parent_node_id, target_id,
                          layers={self.ns, self.ns+':'+reltype,
                                  self.ns+':coreference'},
                          label=reltype,
                          edge_type=dg.EdgeTypes.pointing_relation)
            self.add_layer(target_id, self.ns+':markable')

    def add_secedge(self, secedge):
        """
        Parameters
        ----------
        secedge : etree.Element
            etree representation of a <secedge> element
        A <secEdge> element has a cat and a parent attribute,
        but inherits its ID from its parent element.
        It describes a secondary edge in a tree-like syntax representation.

        Example
        -------
           <node xml:id="s10_505" cat="VXINF" func="OV" parent="s10_507">
            <secEdge cat="refvc" parent="s10_504"/>
            <word xml:id="s10_6" form="worden" pos="VAPP" lemma="werden%passiv" func="HD" parent="s10_505" dephead="s10_7" deprel="AUX"/>
           </node>
        """
        edge_source = self.get_parent_id(secedge)
        edge_target = self.get_element_id(secedge)
        self.add_edge(edge_source, edge_target,
                      layers={self.ns, self.ns+':secedge'},
                      label='secedge:'+secedge.attrib['cat'],
                      edge_type=dg.EdgeTypes.pointing_relation)

    def add_sentence(self, sentence):
        """
        Parameters
        ----------
        sentence : etree.Element
            etree representation of a sentence
            (syntax tree with coreference annotation)
        """
        sent_root_id = sentence.attrib[add_ns('id')]
        # add edge from document root to sentence root
        self.add_edge(self.root, sent_root_id, edge_type=dg.EdgeTypes.spanning_relation)
        self.sentences.append(sent_root_id)

        sentence_token_ids = []
        
        for descendant in sentence.iterdescendants('word'):
            sentence_token_ids.append(self.get_element_id(descendant))
        
        self.node[sent_root_id]['tokens'] = sentence_token_ids

    def add_splitrelation(self, splitrelation):
        """
        Parameters
        ----------
        splitrelation : etree.Element
            etree representation of a <splitRelation> element
            A <splitRelation> annotates its parent element (e.g. as an anaphora).
            Its parent can be either a <word> or a <node>.
            A <splitRelation> has a target attribute, which describes
            the targets (plural! e.g. antecedents) of the relation.

        Example
        -------
            <node xml:id="s2527_528" cat="NX" func="-" parent="s2527_529">
             <splitRelation type="split_antecedent" target="s2527_504 s2527_521"/>
             <word xml:id="s2527_32" form="beider" pos="PIDAT" morph="gpf" lemma="beide" func="-" parent="s2527_528" dephead="s2527_33" deprel="DET"/>
             <word xml:id="s2527_33" form="Firmen" pos="NN" morph="gpf" lemma="Firma" func="HD" parent="s2527_528" dephead="s2527_31" deprel="GMOD"/>
            </node>

            <word xml:id="s3456_12" form="ihr" pos="PPOSAT" morph="nsm" lemma="ihr" func="-" parent="s3456_507" dephead="s3456_14" deprel="DET">
             <splitRelation type="split_antecedent" target="s3456_505 s3456_9"/>
            </word>
        """
        source_id = self.get_element_id(splitrelation)
        # the target attribute looks like this: target="s2527_504 s2527_521"
        target_node_ids = splitrelation.attrib['target'].split()
        # we'll create an additional node which spans all target nodes
        target_span_id = '__'.join(target_node_ids)
        reltype = splitrelation.attrib['type']
        self.add_node(source_id,
                      layers={self.ns, self.ns+':relation', self.ns+':'+reltype, self.ns+':markable'})
        self.add_node(target_span_id,
                      layers={self.ns, self.ns+':targetspan', self.ns+':'+reltype, self.ns+':markable'})
        self.add_edge(source_id, target_span_id,
                      layers={self.ns, self.ns+':coreference', self.ns+':'+reltype},
                      edge_type=dg.EdgeTypes.pointing_relation)        
        
        for target_node_id in target_node_ids:
            self.add_edge(target_span_id, target_node_id,
                          layers={self.ns, self.ns+reltype},
                          edge_type=dg.EdgeTypes.spanning_relation)

    def add_topic(self, topic):
        """
        Parameters
        ----------
        topic : etree.Element
            etree representation of a <topic> element
            (topic annotation of a text span, e.g. a sentence, edu or edu-range)

        Example
        -------
            <topic xml:id="topic_9_0" description="Kuli">
                <sentence xml:id="s128">

            ...

            <topic xml:id="topic_37_1" description="Die Pläne der AG">
                <edu-range xml:id="edus37_8_0-8_1">
                    <discRel relation="Restatement" marking="-" arg2="edu_37_9_0"/>
                        <sentence xml:id="s660">
        """
        topic_id = self.get_element_id(topic)
        self.add_node(topic_id, layers={self.ns, self.ns+':topic'},
                      description=topic.attrib['description'])
        topic_tokens = []
        for word in topic.iterdescendants('word'):
            word_id = self.get_element_id(word)
            topic_tokens.append(word_id)
            self.add_edge(topic_id, word_id, layers={self.ns, self.ns+':topic'},
                          edge_type=dg.EdgeTypes.spanning_relation)
        self.node[topic_id]['tokens'] = topic_tokens

    def add_word(self, word):
        """
        Parameters
        ----------
        word : etree.Element
            etree representation of a <word> element
            (i.e. a token, which might contain child elements)
        """
        word_id = self.get_element_id(word)
        if word.getparent().tag in ('node', 'sentence'):
            parent_id = self.get_parent_id(word)
        else:
            # ExportXML is an inline XML format. Therefore, a <word>
            # might be embedded in weird elements. If this is the case,
            # attach it directly to the closest <node> or <sentence> node
            try:
                parent = word.iterancestors(tag=('node', 'sentence')).next()
                parent_id = self.get_element_id(parent)
            except StopIteration as e:
                # there's at least one weird edge case, where a <word> is
                # embedded like this: (text (topic (edu (word))))
                # here, we guess the sentence ID from the
                parent_id = self.get_element_id(word).split('_')[0]

        self.tokens.append(word_id)
        # use all attributes except for the ID
        word_attribs = self.element_attribs_to_dict(word)
        # add the token string under the key namespace:token
        token_str = word_attribs['form']
        word_attribs.update({self.ns+':token': token_str, 'label': token_str})
        self.add_node(word_id, layers={self.ns, self.ns+':token'}, attr_dict=word_attribs)
        self.add_edge(parent_id, word_id, edge_type=dg.EdgeTypes.dominance_relation)
        self.parse_child_elements(word)

    def element_attribs_to_dict(self, element):
        """
        converts the .attrib attributes of an etree element (from ``lxml.etree._Attrib``)
        into a dict, leaving out the xml:id attribute.
        """
        return {key: val for (key, val) in element.attrib.items()
                if key != add_ns('id')}
    
    def get_element_id(self, element):
        """
        Returns the ID of an element (or, if the element doesn't have one:
        the ID of its parent). Returns an error, if both elements have no ID.
        """
        id_attrib_key = add_ns('id')
        if id_attrib_key in element.attrib:
            return element.attrib[id_attrib_key]
        try:
            return element.getparent().attrib[id_attrib_key]
        except KeyError as e:
            raise KeyError(
                'Neither the element "{}" nor its parent "{}" '
                'have an ID'.format(element, element.getparent()))
    
    def get_parent_id(self, element):
        """returns the ID of the parent of the given element"""
        if 'parent' in element.attrib:
            return element.attrib['parent']
        else:
            return element.getparent().attrib[add_ns('id')]
        
    def get_sentence_id(self, element):
        """returns the ID of the sentence the given element belongs to."""
        try:
            sentence_elem = element.iterancestors('sentence').next()
        except StopIteration as e:
            warnings.warn("<{}> element is not a descendant of a <sentence> "
                          "We'll try to extract the sentence ID from the "
                          "prefix of the element ID".format(element.tag))
            return self.get_element_id(element).split('_')[0]
        return self.get_element_id(sentence_elem)



In [28]:

    
exml_corpus = ExportXMLCorpus(TUEBADZ8_FILE, parse=True)



In [29]:

    
texts = []

for i in range(10):
    texts.append(exml_corpus.next())



In [30]:

    
text = texts[9]

dg.write_conll(text, '/tmp/9.conll', coreference_layer='exportxml:coreference')



In [31]:

    
for doc in ExportXMLCorpus(TUEBADZ8_FILE, parse=True):
    output_filepath = os.path.join('/tmp/{}.conll'.format(doc.name))
    if os.path.isfile(output_filepath):
        # Tüba-D/Z ExportXML 8.0 uses two <text> IDs twice!1!!
        output_filepath = os.path.join('/tmp/{}_a.conll'.format(doc.name))
    dg.write_conll(doc, output_filepath, coreference_layer='exportxml:coreference')









    



/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's504_509' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's501_3' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's510_503' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's507_501' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's507_500' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's505_1' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's509_512' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's509_511' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's509_514' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's511_509' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's497_500' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_513' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_512' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_519' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's500_505' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's500_501' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's502_518' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's502_517' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's509_504' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's509_509' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's502_3' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's506_512' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's511_513' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's511_18' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's495_502' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's495_501' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's495_500' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's502_529' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's502_525' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's502_522' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_505' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_509' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_508' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's501_510' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's501_509' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's501_508' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's501_507' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's501_504' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's501_506' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's501_505' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's499_512' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's499_500' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's508_507' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's511_538' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's511_534' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's509_41' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's509_539' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's509_538' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's506_18' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_532' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_531' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_507' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_506' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_530' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_518' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_515' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_511' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_510' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_514' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_517' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_516' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_529' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_528' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_527' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_526' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_525' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_524' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_523' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_520' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_522' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_521' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_504' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_503' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_502' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_501' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's501_500' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's504_2' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's499_2' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's503_17' from cyclical graph'text_29'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1077_511' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1077_513' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1069_500' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1081_518' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1081_517' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1081_513' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1065_507' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1065_505' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1070_504' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1070_500' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1059_504' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1059_503' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1059_502' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1081_500' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1081_509' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1066_511' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1066_507' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1066_510' from cyclical graph'text_69'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's1246_510' from cyclical graph'text_76'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/IPython/kernel/__main__.py:506: UserWarning: <node> element is not a descendant of a <sentence> We'll try to extract the sentence ID from the prefix of the element ID
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2606_521' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2606_519' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2603_516' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2603_510' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2603_501' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2603_502' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2603_500' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2603_503' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2619_522' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2619_516' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2619_515' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2619_520' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2619_519' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2619_517' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2610_504' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2610_507' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2610_500' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2602_506' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2602_505' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2602_504' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2599_500' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's2599_506' from cyclical graph'text_145'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4209_518' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4212_517' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4209_503' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4209_502' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4206_505' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4223_500' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4207_500' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4211_525' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4219_514' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4219_512' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4219_507' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4219_511' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4219_510' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4219_508' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4221_504' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4219_518' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4219_517' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4219_516' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4209_501' from cyclical graph'text_202'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4529_531' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4529_530' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4529_529' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_547' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_546' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_545' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_544' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_549' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_543' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_548' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4530_501' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_507' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4529_8' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4521_522' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4521_507' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4521_516' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4521_508' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_515' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_513' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4521_7' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4528_507' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4528_506' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4524_501' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4524_502' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4524_500' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_528' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_525' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4522_521' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4523_521' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4525_511' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4530_520' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4530_521' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4530_523' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4530_525' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4523_514' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4523_518' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4530_514' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4530_513' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4526_521' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4526_519' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4526_520' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4524_514' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4526_538' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4526_536' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4526_534' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4526_535' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4526_537' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4521_504' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4521_502' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4529_500' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4525_508' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4525_504' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4525_507' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4525_505' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4525_506' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4525_509' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4525_500' from cyclical graph'text_218'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4891_504' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4891_505' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4905_29' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4902_530' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4909_15' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4918_501' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4918_507' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4925_505' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4916_500' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4918_530' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4918_533' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_57' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_517' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_512' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_511' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_516' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_515' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_514' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_513' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_507' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4890_514' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4890_515' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4905_511' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4905_512' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4911_503' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4911_502' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_500' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_66' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4901_8' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4890_522' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4890_525' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4905_502' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4905_503' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4918_510' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4918_15' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_6' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4892_503' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4892_502' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4903_518' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4903_510' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4903_515' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4903_511' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4903_514' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4903_513' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4903_512' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4926_529' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4918_508' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4920_513' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_509' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_520' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_519' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_510' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_518' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_509' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_508' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4888_506' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4912_516' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4909_500' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4909_505' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4902_542' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4902_516' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4902_515' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_512' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_511' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_509' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_510' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_502' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_501' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_500' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_505' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_503' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_504' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_508' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_507' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4898_506' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4903_508' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4903_506' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_562' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_563' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_561' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_566' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_568' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4892_21' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4926_9' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_519' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_512' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_511' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4912_504' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4912_503' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4899_502' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4926_506' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4926_509' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4889_502' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4889_501' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4889_500' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4891_506' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4891_527' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4891_507' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_531' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_529' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_527' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_518' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_525' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_510' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_523' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_520' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_513' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_514' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_508' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_507' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4894_506' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4901_501' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4901_500' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4901_504' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_538' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4886_503' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4886_500' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4886_502' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4886_501' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4908_509' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4908_508' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4887_509' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4918_546' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4916_7' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4902_509' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4902_508' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4906_504' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4917_504' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_550' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4919_505' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4919_504' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_516' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4897_509' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
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/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4897_506' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's4914_502' from cyclical graph'text_233'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5154_543' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5150_501' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5150_500' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5150_508' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5154_512' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_552' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_510' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_548' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_537' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_512' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_511' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_519' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5160_500' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_544' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_526' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5154_526' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_39' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5165_536' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5165_535' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5155_525' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5155_524' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5155_522' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5155_523' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5155_527' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5150_515' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5159_512' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5159_517' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5159_516' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5159_513' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5159_515' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5159_514' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5165_504' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_529' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5156_515' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5168_521' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5159_505' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5171_505' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5152_536' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5152_537' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5152_535' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5154_500' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5169_513' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5165_519' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5153_520' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5153_501' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5153_514' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5153_502' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5153_503' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5170_525' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5166_505' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's5166_504' from cyclical graph'text_249'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9060_506' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9053_508' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9053_507' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9053_506' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9053_505' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9053_504' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9053_503' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9053_501' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9053_500' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9053_502' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9052_514' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9052_513' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9052_512' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9051_506' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9051_505' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_514' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9064_524' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9064_523' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_534' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_533' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_532' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9058_508' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9058_506' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9058_507' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9065_515' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9065_514' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9065_513' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9065_511' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9065_510' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9065_512' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9050_504' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9050_505' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9052_501' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9065_507' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_521' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_506' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_505' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_504' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_501' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_503' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_502' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_500' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_520' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_519' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_518' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_508' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_507' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_516' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9067_513' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9058_509' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9063_533' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9063_531' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9063_532' from cyclical graph'text_441'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9403_506' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9394_505' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9394_504' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9385_521' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9398_507' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9386_531' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9386_508' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9386_528' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9386_521' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9386_509' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9418_513' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9418_512' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9418_511' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9418_510' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9418_509' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9418_508' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9418_507' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9395_512' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9398_514' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9382_503' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9412_509' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9388_512' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9388_507' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9388_501' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9406_514' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9417_524' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9417_502' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9417_520' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9417_503' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9417_514' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9417_504' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_544' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_518' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_508' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_517' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_516' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_509' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_515' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_510' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_514' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_512' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_511' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_513' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_543' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_542' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9404_532' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9385_526' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9385_503' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9385_547' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9385_518' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9385_543' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9385_535' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9385_517' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9396_505' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9396_504' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9383_514' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9383_505' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9383_518' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9383_512' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9383_502' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9383_503' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9383_519' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9383_515' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9383_508' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9384_504' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9384_503' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9384_502' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9384_501' from cyclical graph'text_460'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9472_514' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9462_535' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9462_536' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9462_551' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9430_512' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9430_510' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9430_509' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9430_508' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9430_511' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9431_500' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9452_500' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9426_500' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9472_530' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9472_527' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9472_526' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9472_529' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9472_528' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9439_15' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9439_519' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9442_509' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9442_502' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9454_528' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9454_527' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9454_526' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9438_505' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9438_504' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9426_518' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9426_507' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9426_508' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9426_516' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9426_505' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9426_515' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9426_504' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_12' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9439_528' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9439_527' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9439_526' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9439_525' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9439_524' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9442_510' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9442_512' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9425_510' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9456_507' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_523' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9439_532' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9475_505' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9475_504' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9475_507' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9442_34' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9443_510' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_501' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9429_513' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9429_511' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9429_510' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9429_509' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9429_508' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9429_507' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9429_512' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9431_512' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9434_530' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9451_515' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9451_519' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_514' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_513' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_512' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_506' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_511' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_508' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_507' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_510' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9460_509' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9429_500' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9424_510' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9424_509' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9424_508' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9424_507' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9424_504' from cyclical graph'text_461'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's9605_511' from cyclical graph'text_469'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10371_500' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10375_522' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10375_513' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10376_501' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_510' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_506' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_505' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_504' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_503' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_509' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_508' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_507' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_512' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_511' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_502' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_501' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10369_500' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10373_507' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10373_506' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10375_505' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10370_503' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10374_500' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10370_9' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10368_503' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10368_502' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10368_501' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's10368_500' from cyclical graph'text_503'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12605_509' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12605_504' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12606_503' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12594_520' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12594_519' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12599_518' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12599_517' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12599_511' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12599_509' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12599_508' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12599_507' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12599_506' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12599_510' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12596_515' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12596_510' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12600_511' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12602_34' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12607_508' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12597_31' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12603_508' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12607_511' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12607_519' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12607_507' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12607_506' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12604_509' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12602_522' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12602_521' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12596_523' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12596_501' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12596_502' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12597_526' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12597_521' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12597_520' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12597_519' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12597_525' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12597_524' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12597_522' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12597_523' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12595_519' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12595_518' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12595_510' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12595_505' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12595_509' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12595_515' from cyclical graph'text_627'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12817_517' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12776_515' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12765_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12817_520' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12817_519' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12770_44' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12770_506' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12770_508' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12818_510' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12779_512' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12792_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12797_511' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12797_503' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12797_502' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12818_503' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12818_502' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12818_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12818_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12779_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12812_517' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12812_510' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12812_507' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12812_509' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12812_508' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12812_511' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12822_512' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12822_517' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12763_507' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12824_514' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12806_506' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12797_507' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12797_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12778_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12769_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12793_14' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12791_2' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12763_510' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12763_509' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12763_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12763_508' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12763_506' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12763_505' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12763_503' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12800_511' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12824_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12813_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12813_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12805_517' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12770_538' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12780_508' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12780_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12812_520' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12767_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12773_518' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12773_516' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12818_522' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12805_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12788_522' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12788_509' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12788_510' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12783_533' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12783_535' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12775_514' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12781_9' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12788_511' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12788_513' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12796_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_532' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_516' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_538' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_531' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_515' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_530' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_513' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_514' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12783_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12809_506' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12809_505' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12809_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12824_516' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12768_17' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12768_516' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12768_514' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12768_513' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12788_503' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12788_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_506' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12773_520' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12795_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12795_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12795_503' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12795_502' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12795_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12791_518' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12791_517' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12766_521' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12782_506' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12782_505' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12782_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12782_503' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12782_502' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12782_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12782_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12817_19' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12799_506' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12799_505' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12799_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12799_508' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12799_502' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12799_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12799_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12799_507' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12799_503' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12766_518' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12766_516' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12766_517' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12766_519' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12766_513' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12791_535' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12808_515' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12782_10' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12768_523' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12776_15' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12766_509' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12793_9' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12777_520' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12769_514' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12824_509' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_545' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_541' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_535' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_522' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12804_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12770_549' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
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  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12803_504' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12803_503' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12803_502' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12803_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12803_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12768_519__s12768_514' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12768_519' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12768_518' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12810_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12785_502' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12785_500' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12785_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12793_510' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12793_509' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12793_508' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12821_501' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12821_507' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12817_535' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12817_537' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12817_534' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12817_536' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12813_523' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12813_522' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12813_521' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12813_520' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12813_525' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12818_534' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's12798_509' from cyclical graph'text_633'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_515' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_517' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_516' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_514' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_513' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_512' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18433_515' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18433_514' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18433_513' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18433_512' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18433_511' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18435_12' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18438_512' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18438_511' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18438_510' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18437_509' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18437_507' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18437_508' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18435_502' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18435_500' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18435_501' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_506' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_505' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_504' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_503' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_502' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18426_501' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18425_522' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18425_521' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18425_520' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18425_519' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18425_518' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18425_517' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18425_516' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))
/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.py:807: UserWarning: Can't reliably extract span 's18434_508' from cyclical graph'text_885'.Maximum recursion depth may be exceeded.
  docgraph))






    



---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
<ipython-input-31-9136fc4139c9> in <module>()
      4         # Tüba-D/Z ExportXML 8.0 uses two <text> IDs twice!1!!
      5         output_filepath = os.path.join('/tmp/{}_a.conll'.format(doc.name))
----> 6     dg.write_conll(doc, output_filepath, coreference_layer='exportxml:coreference')

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/readwrite/conll.pyc in write_conll(docgraph, output_file, coreference_layer)
    494     """
    495     conll_file = Conll2009File(docgraph,
--> 496                                coreference_layer=coreference_layer)
    497     assert isinstance(output_file, (str, file))
    498     if isinstance(output_file, str):

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/readwrite/conll.pyc in __init__(self, docgraph, coreference_layer)
    341         self.docgraph = docgraph
    342         self.tok2markables, self.markable2toks, self.markable2chains = \
--> 343             self.__build_markable_token_mapper(coreference_layer=coreference_layer)
    344 
    345     def __build_markable_token_mapper(self, coreference_layer=None):

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/readwrite/conll.pyc in __build_markable_token_mapper(self, coreference_layer)
    365 
    366         coreference_chains = get_pointing_chains(self.docgraph,
--> 367                                                  layer=coreference_layer)
    368         for chain_id, chain in enumerate(coreference_chains):
    369             for markable_node_id in chain:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in get_pointing_chains(docgraph, layer)
   1018 
   1019     all_chains = [__walk_chain(rel_dict, from_id)
-> 1020                   for from_id in rel_dict.iterkeys()]
   1021 
   1022     # don't return partial chains, i.e. instead of returning [a,b], [b,c] and

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

/usr/local/lib/python2.7/dist-packages/discoursegraphs-0.1.2-py2.7.egg/discoursegraphs/discoursegraph.pyc in __walk_chain(rel_dict, from_id)
    989     for to_id in rel_dict[from_id]:
    990         if to_id in rel_dict:
--> 991             for tail in __walk_chain(rel_dict, to_id):
    992                 paths_starting_with_id.append([from_id] + tail)
    993         else:

RuntimeError: maximum recursion depth exceeded



In [15]:

    
# text = texts[9]

# for elem in dg.select_nodes_by_layer(text, 'exportxml:discourse'):
#     print elem
#     print text.node[elem]
#     targets = [target for source, target in text.out_edges(elem)]
#     for target in targets:
#         print '\ttarget: ', target, 'target text: ', dg.get_text(text, target)
#     print 'span: ', dg.get_span(text, elem)
#     print 'text: ', dg.get_text(text, elem)
#     print '\n\n'



In [16]:

    
# for exml_doc in exml_corpus:
# #     pass
#     dg.write_dot(exml_doc, '/tmp/{}.dot'.format(exml_doc.name))



In [17]:

    
# %load_ext gvmagic



In [18]:

    
# %dotstr dg.print_dot(text)

What do those ExportXML elements represent?



In [19]:

    
# are all <relation> elements without a 'target' attribute of type="expletive"?

from collections import Counter

elements = Counter()

for text_elem in ExportXMLCorpus(TUEBADZ8_FILE, parse=False):
    for relation in text_elem.iterdescendants('relation'):
        if 'target' not in relation.attrib:
            elements[relation.attrib['type']] += 1
        
sorted(elements.items(), key=itemgetter(1), reverse=True)









    Out[19]:





[('inherent_reflexive', 7735), ('expletive', 6835)]



In [26]:

    
# do all type="inherent_reflexive" <relation> elements belong to a 'sich' token?

from collections import Counter

elements = Counter()

for text_elem in ExportXMLCorpus(TUEBADZ8_FILE, parse=False):
    for relation in text_elem.iterdescendants('relation'):
        if 'target' not in relation.attrib:
            parent_node = relation.getparent()
            words = list(parent_node.iterdescendants('word'))
            assert len(words) == 1, "{}".format(etree.tostring(parent_node))
#             elements[relchildren[0].attrib['form']] += 1
        
sorted(elements.items(), key=itemgetter(1), reverse=True)









    



---------------------------------------------------------------------------
AssertionError                            Traceback (most recent call last)
<ipython-input-26-2351de71ebfc> in <module>()
     10             parent_node = relation.getparent()
     11             words = list(parent_node.iterdescendants('word'))
---> 12             assert len(words) == 1, "{}".format(etree.tostring(parent_node))
     13 #             elements[relchildren[0].attrib['form']] += 1
     14 

AssertionError: <node xml:id="s274_543" cat="FKONJ" func="KONJ" parent="s274_544">
       <relation type="expletive"/>
       <node xml:id="s274_521" cat="LK" func="-" parent="s274_543">
        <node xml:id="s274_504" cat="VXFIN" func="HD" parent="s274_521">
         <word xml:id="s274_10" form="sei" pos="VAFIN" morph="3sks" lemma="sein%aux" func="HD" parent="s274_504" dephead="s274_35" deprel="S"/>
        </node>
       </node>
       <node xml:id="s274_541" cat="MF" func="-" parent="s274_543">
        <node xml:id="s274_539" cat="NX" func="PRED" parent="s274_541">
         <word xml:id="s274_11" form="als" pos="KOKOM" lemma="als" func="-" parent="s274_539" dephead="s274_12" deprel="-UNKNOWN-"/>
         <node xml:id="s274_505" cat="NX" func="HD" parent="s274_539">
          <relation type="coreferential" target="s272_502"/>
          <word xml:id="s274_12" form="Beitrag" pos="NN" morph="nsm" lemma="Beitrag" func="HD" parent="s274_505" dephead="s274_20" deprel="PRED"/>
         </node>
         <node xml:id="s274_537" cat="PX" func="-" parent="s274_539">
          <word xml:id="s274_13" form="f&#252;r" pos="APPR" morph="a" lemma="f&#252;r" func="-" parent="s274_537" dephead="s274_12" deprel="PP"/>
          <node xml:id="s274_533" cat="NX" func="HD" parent="s274_537">
           <node xml:id="s274_522" cat="NX" func="HD" parent="s274_533">
            <word xml:id="s274_14" form="den" pos="ART" morph="asm" lemma="der" func="-" parent="s274_522" dephead="s274_16" deprel="DET"/>
            <node xml:id="s274_506" cat="ADJX" func="-" parent="s274_522">
             <word xml:id="s274_15" form="kulturellen" pos="ADJA" morph="asm" lemma="kulturell" func="HD" parent="s274_506" dephead="s274_16" deprel="ATTR"/>
            </node>
            <word xml:id="s274_16" form="Austausch" pos="NN" morph="asm" lemma="Austausch" func="HD" parent="s274_522" dephead="s274_13" deprel="PN"/>
           </node>
           <node xml:id="s274_523" cat="PX" func="-" parent="s274_533">
            <word xml:id="s274_17" form="zwischen" pos="APPR" morph="d" lemma="zwischen" func="-" parent="s274_523" dephead="s274_16" deprel="PP"/>
            <node xml:id="s274_507" cat="NX" func="HD" parent="s274_523">
             <word xml:id="s274_18" form="den" pos="ART" morph="dpn" lemma="das" func="-" parent="s274_507" dephead="s274_19" deprel="DET"/>
             <word xml:id="s274_19" form="V&#246;lkern" pos="NN" morph="dpn" lemma="Volk" func="HD" parent="s274_507" dephead="s274_17" deprel="PN"/>
            </node>
           </node>
          </node>
         </node>
        </node>
       </node>
       <node xml:id="s274_524" cat="VC" func="-" parent="s274_543">
        <node xml:id="s274_508" cat="VXINF" func="OV" parent="s274_524">
         <word xml:id="s274_20" form="gedacht" pos="VVPP" lemma="denken" func="HD" parent="s274_508" dephead="s274_10" deprel="AUX"/>
        </node>
       </node>
      </node>



In [22]:

    
# children of <ne>

from collections import Counter

elements = Counter()

for text_elem in ExportXMLCorpus(TUEBADZ8_FILE, parse=False):
    for ne in text_elem.iterdescendants('ne'):
        for ne_child in ne.iterchildren():
            elements[ne_child.tag] += 1
        
sorted(elements.items(), key=itemgetter(1), reverse=True)









    



---------------------------------------------------------------------------
KeyboardInterrupt                         Traceback (most recent call last)
<ipython-input-22-5e0c9153641a> in <module>()
      5 elements = Counter()
      6 
----> 7 for text_elem in ExportXMLCorpus(TUEBADZ8_FILE, parse=False):
      8     for ne in text_elem.iterdescendants('ne'):
      9         for ne_child in ne.iterchildren():

<ipython-input-3-ca21ebe5ede0> in text_iter(self, context)
     31         afterwards, the elements are removed from the DOM / main memory.
     32         """
---> 33         for _event, elem in context:
     34             if self.parse:
     35                 yield ExportXMLDocumentGraph(elem)

KeyboardInterrupt:



In [ ]:

    
# parents of <word>

from collections import Counter

elements = Counter()

for text_elem in ExportXMLCorpus(TUEBADZ8_FILE, parse=False):
    for word in text_elem.iterdescendants('word'):
        elements[word.getparent().tag] += 1
        
sorted(elements.items(), key=itemgetter(1), reverse=True)



In [ ]:

    
# internal structure of non-<sentence> children of <text>

from collections import defaultdict

elements = defaultdict(lambda : defaultdict(int))



In [ ]:

    
for text_elem in ExportXMLCorpus(TUEBADZ8_FILE, parse=False):
    for child in text_elem.iterchildren():
        if child.tag != 'sentence':
            for grandchild in child.iterchildren():
                elements[child.tag][grandchild.tag] += 1
        
sorted(elements.items(), key=itemgetter(1), reverse=True)



In [ ]:

    
for child in elements:
    print child
    print elements[child], '\n\n'

elements = Counter()
for text_elem in ExportXMLCorpus(TUEBADZ8_FILE):
    for descendant in text_elem.iterdescendants():
        elements[descendant.tag] += 1

from operator import itemgetter
sorted(elements.items(), key=itemgetter(1), reverse=True)

[('node', 1611076),
 ('word', 1365642),
 ('relation', 109239),
 ('sentence', 75408),
 ('ne', 66564),
 ('secEdge', 5450),
 ('edu', 1612),
 ('connective', 1522),
 ('discRel', 1458),
 ('edu-range', 323),
 ('splitRelation', 297),
 ('topic', 141)]

Do `<text>` elements only contain `<sentence>` as children? NO!

<topic> can occur as a parent of <sentence> and describes them
<topic> never occur elsewhere

...
   <word xml:id="s132_21" form="." pos="$." lemma="." func="--" deprel="ROOT"/>
   </edu>
  </sentence>
 </topic>
 <topic xml:id="topic_9_2" description="Probleme bei weiblichen Alkoholismus">
  <sentence xml:id="s133">
   <node xml:id="s133_530" cat="SIMPX" func="--">
    <edu xml:id="edu_9_8_0">
...

<edu-range> seems to glue together a number of `<edu> elements,
which may be scattered over a number of sentences
<edu-range> may or may not contain a span attribute

<edu-range xml:id="edus9_3_1-5_0" span="s128_4..s130_7">
    <node xml:id="s128_525" cat="SIMPX" func="--">
     <edu xml:id="edu_9_3_1">
      <discRel relation="Continuation" marking="-" arg2="edu_9_3_2"/>
      <node xml:id="s128_506" cat="VF" func="-" parent="s128_525">
       <node xml:id="s128_505" cat="NX" func="ON" parent="s128_506">
        <relation type="expletive"/>
        <word xml:id="s128_4" form="Es" pos="PPER" morph="nsn3" lemma="es" func="HD" parent="s128_505" dephead="s128_5" deprel="SUBJ"/>
       </node>
      </node>

Do `<topic>` elements describe one or potentially more sentences?



In [ ]:

    
elements = Counter()
for text_elem in ExportXMLCorpus(TUEBADZ8_FILE):
    for child in text_elem.iterchildren():
        elements[child.tag] += 1
        
sorted(elements.items(), key=itemgetter(1), reverse=True)



In [ ]:

    
# children of <topic>

elements = Counter()
for text_elem in ExportXMLCorpus(TUEBADZ8_FILE):
    for topic in text_elem.iterdescendants('topic'):
        for child in topic.iterchildren():
            elements[child.tag] += 1
        
sorted(elements.items(), key=itemgetter(1), reverse=True)

Do `<sentence>` elements only contain `<node>` as children? NO!

<word>, <ne>, <edu> and <edu-range> can be children of <sentence> as well!
e.g. quotation marks <word> elements occur outside of a <node>

<sentence xml:id="s2196">
  <word xml:id="s2196_1" form='"' pos="$(" lemma='"' func="--" deprel="ROOT"/>
  <node xml:id="s2196_526" cat="SIMPX" func="--">



In [ ]:

    
# all types of children of <sentence>

sent_children = Counter()
for text_elem in ExportXMLCorpus(TUEBADZ8_FILE):
    for sentence in text_elem.iterdescendants('sentence'):
        for child in sentence.iterchildren():
            sent_children[child.tag] += 1
        
sorted(sent_children.items(), key=itemgetter(1), reverse=True)



In [ ]:

    
# all types of descendants of <sentence>

sent_children = Counter()
for text_elem in ExportXMLCorpus(TUEBADZ8_FILE):
    for sentence in text_elem.iterdescendants('sentence'):
        for child in sentence.iterdescendants():
            sent_children[child.tag] += 1
        
sorted(sent_children.items(), key=itemgetter(1), reverse=True)

Do `<word>` elements have children? YES!



In [ ]:

    
word_children = Counter()
for text_elem in ExportXMLCorpus(TUEBADZ8_FILE):
    for word in text_elem.iterdescendants('word'):
        for child in word.iterdescendants():
            word_children[child.tag] += 1

sorted(word_children.items(), key=itemgetter(1), reverse=True)

when parsing <word> as tokens for a sentence, keep an eye on <relation>, <connective> and <splitRelation>
<relation> can either occur as a daughter of <word> OR as a predecessor of <node> or <word>
a <relation> always gets its ID from its parent and contains its target as an attribute

<node xml:id="s149_507" cat="NX" func="ON" parent="s149_509">
       <relation type="anaphoric" target="s149_501"/>
       <word xml:id="s149_8" form="sie" pos="PPER" morph="np*3" lemma="sie" func="HD" parent="s149_507" dephead="s149_10" deprel="SUBJ"/>
      </node>

<node xml:id="s4_507" cat="NX" func="ON" parent="s4_513">
      <relation type="coreferential" target="s1_502"/>
      <node xml:id="s4_505" cat="NX" func="HD" parent="s4_507">
       <word xml:id="s4_4" form="die" pos="ART" morph="nsf" lemma="die" func="-" parent="s4_505" dephead="s4_5" deprel="DET"/>
       <ne xml:id="ne_32" type="ORG">
        <word xml:id="s4_5" form="Arbeiterwohlfahrt" pos="NN" morph="nsf" lemma="Arbeiterwohlfahrt" func="HD" parent="s4_505" dephead="s4_3" deprel="SUBJ"/>
       </ne>
      </node>
      <node xml:id="s4_506" cat="NX" func="-" parent="s4_507">
       <ne xml:id="ne_33" type="GPE">
        <word xml:id="s4_6" form="Bremen" pos="NE" morph="nsn" lemma="Bremen" func="HD" parent="s4_506" dephead="s4_5" deprel="APP"/>
       </ne>
      </node>
     </node>

<word xml:id="s4_7" form="ihren" pos="PPOSAT" morph="asm" lemma="ihr" func="-" parent="s4_509" dephead="s4_9" deprel="DET">
        <relation type="anaphoric" target="s4_507"/>
       </word>

<connective> is an annotation of a word

<word xml:id="s29_1" form="Als" pos="KOUS" lemma="als" func="-" parent="s29_500" dephead="s29_14" deprel="KONJ">
       <connective konn="als" rel1="Temporal" rel2="enable"/>
      </word>

<splitRelation> can occur as a predecessor of <word> (i.e. a child of <node>) OR
as a child of <word> and describes which targets (plural!) its relation has

<node xml:id="s2527_528" cat="NX" func="-" parent="s2527_529">
         <splitRelation type="split_antecedent" target="s2527_504 s2527_521"/>
         <word xml:id="s2527_32" form="beider" pos="PIDAT" morph="gpf" lemma="beide" func="-" parent="s2527_528" dephead="s2527_33" deprel="DET"/>
         <word xml:id="s2527_33" form="Firmen" pos="NN" morph="gpf" lemma="Firma" func="HD" parent="s2527_528" dephead="s2527_31" deprel="GMOD"/>
        </node>

<word xml:id="s3456_12" form="ihr" pos="PPOSAT" morph="nsm" lemma="ihr" func="-" parent="s3456_507" dephead="s3456_14" deprel="DET">
         <splitRelation type="split_antecedent" target="s3456_505 s3456_9"/>
        </word>

are `<connective>` elements always children of `<word>`? YES!



In [ ]:

    
connective_parents = Counter()
for text_elem in ExportXMLCorpus(TUEBADZ8_FILE):
    for connective in text_elem.iterdescendants('connective'):
            connective_parents[connective.getparent().tag] += 1

sorted(connective_parents.items(), key=itemgetter(1), reverse=True)



In [ ]:

    
print text



In [ ]:

    
def get_text(text_element, result_list):
    text_str = 'ID: {}\nOrigin: {}\n\n'.format(text_element.attrib[add_ns('id')], text_element.attrib['origin'])
    for sentence in text_element.iterchildren('sentence'):
        sent_str = u'line: {}\n'.format(sentence.sourceline)
        sent_str += u' '.join(word.attrib['form'] for word in sentence.iterdescendants('word'))
        text_str += u'{}\n'.format(sent_str)
    result_list.append(text_str)



In [ ]:

    
results = []

context = etree.iterparse(TUEBADZ8_FILE, events=('end',), tag='text', recover=True)



In [ ]:

    
%load_ext memory_profiler



In [ ]:

    
# %memit fast_iter(context, get_text, results)
# peak memory: 330.86 MiB, increment: 249.31 MiB
# %time fast_iter(context, get_text, results)
# Wall time: 2min 13s



In [ ]:

    
%memit texts = list(fast_iter_yield(context, get_text, results))
# peak memory: 330.86 MiB, increment: 249.31 MiB
# %time fast_iter(context, get_text, results)
# Wall time: 2min 13s

example sentences



In [ ]:

    
from collections import Counter

tree = etree.parse(TUEBADZ8_FILE)
sentence_origins = Counter()

sentences_iter = tree.iterfind('sentence')



In [ ]:

    
s0 = sentences_iter.next()



In [ ]:

    
print etree.tostring(s0)

ExportXML `<element>` counts

What about `<relation>` and `<anaphora>`?



In [ ]:

    
from collections import Counter, defaultdict

def count_element_positions(tree, element):
    element_positions = defaultdict(Counter)

    for elem_instance in tree.iter(element):
        element_positions['parent'][elem_instance.getparent().tag] += 1
        for child in elem_instance.getchildren():
            element_positions['children'][child.tag] += 1
    return element_positions



In [ ]:

    
count_element_positions(tree, 'relation')



In [ ]:

    
count_element_positions(tree, 'anaphora')



In [ ]:

    
anaphora_iter = tree.iter('anaphora')

for i in range(3):
    print etree.tostring(anaphora_iter.next())



In [ ]:

    
anaphora_iter = tree.iter('anaphora')
word_anaphora = [a for a in anaphora_iter if a.getparent().tag == 'word']
for word_ana in word_anaphora[:3]:
    print etree.tostring(word_ana)

unusual examples

expletive

~/corpora/tueba/tuebadz-5.0/data/XML $ ack-grep -A 5 s_11429_n_506 tuebadz-5.0.anaphora.export.xml
        <node cat="NX" comment="" func="ON" id="s_11429_n_506">
          <anaphora>
            <relation type="expletive" antecedent=""/>
          </anaphora>
          <word comment="" form="Es" func="HD" pos="PPER" morph="nsn3" id="s_11429_n_10"/>
        </node>

split antecedent

27434-          <node cat="MF" comment="" func="-" id="s_382_n_511">
27435-            <node cat="NX" comment="" func="ON" id="s_382_n_501">
27436-              <anaphora>
27437:                <relation type="split_antecedent" antecedent="s_381_n_9,s_378_n_510"/>
27438-              </anaphora>
27439-              <word comment="" form="die" func="-" pos="ART" morph="npm" id="s_382_n_1"/>
27440-              <word comment="" form="Partner" func="HD" pos="NN" morph="npm" id="s_382_n_2"/>
27441-            </node>
27442-            <node cat="ADVX" comment="" func="OADVP" id="s_382_n_502">
27443-              <word comment="" form="miteinander" func="HD" pos="ADV" morph="--" id="s_382_n_3"/>
27444-            </node>
27445-          </node>



In [ ]:

    
anaphora_iter = tree.iter('anaphora')
for anaphora in anaphora_iter:
    # there's only one <relation> child element
    antecedent = anaphora.getchildren()[0].attrib['antecedent']

ExportXML meanings

<node>: a node in a syntax tree
<word>: a token in a sentence / syntax tree
<relation>: a child of an <anaphora> element; it's always a leaf node
it has a type attrib (relation type) and an antecedent attrib (antecedent's node ID)
NB: if an anaphora has no antecedent, (e.g. if it's an expletive relation) the antecedent attrib
is an empty string!
<anaphora>: a child of a <node> or <word> element; always has one <relation> child;
the element itself contains no information
<sentence>: a sentence / syntax tree

 ('secedge', 4647),
 ('originDef', 2213),
 ('morphDef', 437),
 ('posDef', 56),
 ('edgeDef', 50),
 ('nodeDef', 29),
 ('editorDef', 26),
 ('secedgeDef', 7),
 ('comment', 6),


 ('posList', 1),
 ('secedgeList', 1),
 ('editorList', 1),
 ('edgeList', 1),
 ('originList', 1),
 ('format', 1),
 ('morphList', 1),
 ('nodeList', 1),
 ('export', 1)]



In [ ]:

    
def parse_anaphora(anaphora, source_id):
    """
    Parameters
    ----------
    anaphora : etree.Element
        an <anaphora> element
    source_id : str
        the node ID of the anaphora (points either to a <node> or a <word>)
    
    Returns
    -------
    antecedent : str
        node ID of the antecedent, e.g. ``s_4_n_527``
    relation_type : str
        anaphoric relation type, e.g. ``anaphoric`` or ``coreferential``
    """
    # there's only one <relation> child element
    relation = anaphora.getchildren()[0]
    return relation.attrib['antecedent'], relation.attrib['type']
    

def exportxml2igraph(exportxml_file):
    """
    TODO: add <node> and <word> attributes
    """
    # in igraph, adding a single edge is prohibitively slow,
    # as the whole index of the graph has to be rebuild!
    # http://stackoverflow.com/questions/13974279/igraph-why-is-add-edge-function-so-slow-ompared-to-add-edges
    # to speed this up, store the edges in a list & call add_edges() once!
    edges = []
    relations = {}
    idocgraph = ig.Graph(directed=True)
    
    treeiter = etree.iterparse(TUEBADZ_FILE, tag='sentence')
    for _action, sentence in treeiter:
        sent_root_id = sentence.attrib['origin']
        idocgraph.add_vertex(sent_root_id, label=sent_root_id)
        
        for element in sentence.iter('node', 'word', 'anaphora'):
            parent_element = element.getparent()
            # some <anaphora> are children of <word> elements
            if parent_element.tag in ('node', 'word'):
                parent_id = parent_element.attrib['id']
            elif parent_element.tag == 'sentence':
                parent_id = parent_element.attrib['origin']
            else:
                sys.stderr.write("Unexpected parent '{}' of element '{}'\n".format(parent_element, element))
            element_id = element.attrib.get('id') # <anaphora> doesn't have an ID

            if element.tag == 'node':
                idocgraph.add_vertex(element_id, label=element.attrib['cat'])
                edges.append((parent_id, element_id))
            elif element.tag == 'word':
                idocgraph.add_vertex(element_id, label=element.attrib['form'])
                edges.append((parent_id, element_id))

            else: # element.tag == 'anaphora'
                # <anaphora> doesn't have an ID, but it's tied to its parent element
                antecedent_str, relation_type = parse_anaphora(element, parent_id)
                if antecedent_str:
                    # there might be more than one antecedent
                    for antecedent_id in antecedent_str.split(','):
                        edge = (parent_id, antecedent_id)
                        edges.append(edge)
                        relations[edge] = relation_type
                else:
                    # there's no antecedent in case of an expletive anaphoric relation
                    relations[(parent_id, None)] = relation_type
      
    idocgraph.add_edges(edges)

    # igraph doesn't store nodes/edge names in a dict, so a lookup would be O(n)
    node_name2id = {node['name']: node.index for node in idocgraph.vs}
    edge_endpoints2id = {(edge.source, edge.target): edge.index
                         for edge in idocgraph.es}

    for (source, target) in relations:
        relation_type = relations[(source, target)]
        if target:
            edge_endpoints = (node_name2id[source], node_name2id[target])
            idocgraph.es[edge_endpoints2id[edge_endpoints]]['exportxml:relation_type'] = relation_type
#             idocgraph.es[idocgraph.get_eid(source, target)]['exportxml:relation_type'] = relation_type

        else:
            # there's no antecedent in case of an expletive anaphoric relation
            
            idocgraph.vs[node_name2id[source]]['exportxml:anaphora_type'] = relation_type
#             idocgraph.vs.select(name=source)['exportxml:anaphora_type'] = relation_type
    return idocgraph



In [ ]:

    
%%time
tuebagraph = exportxml2igraph(TUEBADZ_FILE)



In [ ]:

    
tuebagraph.ecount()



In [ ]:

    
tuebagraph.vcount()



In [ ]:

    
import igraph as ig

foo = ig.Graph(directed=True)
foo.add_vertices(['1','2','3','4'])
foo.add_edges([('1', '1'), ('1', '2'), ('3', '4')])



In [ ]:

    
# for e in foo.es:
#     print e, e.index, e.source, e.target
foo.es[0]



In [ ]:

    
for v in foo.vs:
    print v, v.index, v['name']



In [ ]:

    
foo.vs.select(name='2')



In [ ]:

    
foo.vs[0]



In [ ]:

    
list(foo.es.select(_source='3', _target='4'))



In [ ]:

    
from collections import defaultdict

def exportxml2dict(exportxml_file):
    nodes = []
    edges = []
    
    itree = etree.iterparse(TUEBADZ_FILE, tag='sentence')
    for _action, sentence in itree:
        sent_root_id = sentence.attrib['origin']
        nodes.append( (sent_root_id, sent_root_id) )
        
        for element in sentence.iter('node', 'word'):
            parent_element = element.getparent()
            if parent_element.tag == 'node':
                parent_id = parent_element.attrib['id']
            elif parent_element.tag == 'sentence':
                parent_id = parent_element.attrib['origin']
            else:
                sys.stderr.write("Unexpected parent '{}' of element '{}'\n".format(parent_element, element))
            element_id = element.attrib.get('id') # <anaphora> doesn't have an ID

            if element.tag == 'node':
                element_label = element.attrib['cat']
            elif element.tag == 'word':
                element_label = element.attrib['form']
            else:
                continue # for now, ignore other elements (e.g. <anaphora>)

            nodes.append( (element_id, element_label) )
            edges.append( (parent_id, element_id) )
    return nodes, edges

Speed comparison



In [ ]:

    
%%time
nodes, edges = exportxml2dict(TUEBADZ_FILE) # 6.63s

igraph: preprocessed node/edge lists, edges batch insert (total: 12.81 s)

create node/edge lists
add nodes one by one
add edges in one go

%%time

idocgraph = ig.Graph()
for node_id, node_label in nodes:
    idocgraph.add_vertex(node_id, label=node_label)
idocgraph.add_edges(edges)

CPU times: user 6.06 s, sys: 112 ms, total: 6.18 s Wall time: 6.18 s

igraph: preprocessed node/edge lists, nodes & edges batch insert (total: 7.85 s)

create node/edge lists
add nodes in one go (without labels)
add edges in one go

%%time

idocgraph = ig.Graph()
node_ids = (node_id for (node_id, node_label) in nodes)
idocgraph.add_vertices(node_ids)
idocgraph.add_edges(edges)

CPU times: user 1.16 s, sys: 60 ms, total: 1.22 s Wall time: 1.22 s



In [ ]:

    
def exportxml2docgraph(exportxml_file):
    edges = []
    docgraph = dg.DiscourseDocumentGraph()
    edge_attribs = {'layers': {docgraph.ns}} # default edge attributes
    
    treeiter = etree.iterparse(TUEBADZ_FILE, tag='sentence')
    for _action, sentence in treeiter:
        sent_root_id = sentence.attrib['origin']
        docgraph.add_node(sent_root_id, label=sent_root_id)
        
        for element in sentence.iter('node', 'word'):
            parent_element = element.getparent()
            if parent_element.tag == 'node':
                parent_id = parent_element.attrib['id']
            elif parent_element.tag == 'sentence':
                parent_id = parent_element.attrib['origin']
            else:
                sys.stderr.write("Unexpected parent '{}' of element '{}'\n".format(parent_element, element))
            element_id = element.attrib.get('id') # <anaphora> doesn't have an ID

            if element.tag == 'node':
                element_label = element.attrib['cat']
            elif element.tag == 'word':
                element_label = element.attrib['form']
            else:
                continue # for now, ignore other elements (e.g. <anaphora>)

            docgraph.add_node(element_id, label=element_label)
            edges.append((parent_id, element_id, edge_attribs))
    docgraph.add_edges_from(edges)
    return docgraph

ongoing implementation of ExportXML importer (discoursegraphs branch: exportxml)

Tueba-D/Z 5.0

Tueba-D/Z 8.0

represent the whole corpus in an iterable (over documents)

What do those ExportXML elements represent?

Do <text> elements only contain <sentence> as children? NO!

Do <topic> elements describe one or potentially more sentences?

Do <sentence> elements only contain <node> as children? NO!

Do <word> elements have children? YES!

are <connective> elements always children of <word>? YES!

example sentences

ExportXML <element> counts

What about <relation> and <anaphora>?

unusual examples

expletive

split antecedent

ExportXML meanings

Speed comparison

igraph: preprocessed node/edge lists, edges batch insert (total: 12.81 s)

igraph: preprocessed node/edge lists, nodes & edges batch insert (total: 7.85 s)

Do `<text>` elements only contain `<sentence>` as children? NO!

Do `<topic>` elements describe one or potentially more sentences?

Do `<sentence>` elements only contain `<node>` as children? NO!

Do `<word>` elements have children? YES!

are `<connective>` elements always children of `<word>`? YES!

ExportXML `<element>` counts

What about `<relation>` and `<anaphora>`?