[('all', 'age'),
('all', 'birth_mass'),
('all', 'creation_time'),
('all', 'dynamical_time'),
('all', 'mesh_id'),
('all', 'metallicity_fraction'),
('all', 'particle_angular_momentum'),
('all', 'particle_angular_momentum_magnitude'),
('all', 'particle_angular_momentum_x'),
('all', 'particle_angular_momentum_y'),
('all', 'particle_angular_momentum_z'),
('all', 'particle_cylindrical_velocity_theta'),
('all', 'particle_cylindrical_velocity_z'),
('all', 'particle_index'),
('all', 'particle_mass'),
('all', 'particle_ones'),
('all', 'particle_position'),
('all', 'particle_position_cylindrical_radius'),
('all', 'particle_position_cylindrical_theta'),
('all', 'particle_position_cylindrical_z'),
('all', 'particle_position_relative'),
('all', 'particle_position_relative_x'),
('all', 'particle_position_relative_y'),
('all', 'particle_position_relative_z'),
('all', 'particle_position_spherical_phi'),
('all', 'particle_position_spherical_radius'),
('all', 'particle_position_spherical_theta'),
('all', 'particle_position_x'),
('all', 'particle_position_y'),
('all', 'particle_position_z'),
('all', 'particle_radial_velocity'),
('all', 'particle_radius'),
('all', 'particle_specific_angular_momentum'),
('all', 'particle_specific_angular_momentum_x'),
('all', 'particle_specific_angular_momentum_y'),
('all', 'particle_specific_angular_momentum_z'),
('all', 'particle_spherical_position_phi'),
('all', 'particle_spherical_position_radius'),
('all', 'particle_spherical_position_theta'),
('all', 'particle_spherical_velocity_phi'),
('all', 'particle_spherical_velocity_radius'),
('all', 'particle_spherical_velocity_theta'),
('all', 'particle_type'),
('all', 'particle_velocity'),
('all', 'particle_velocity_cylindrical_radius'),
('all', 'particle_velocity_cylindrical_theta'),
('all', 'particle_velocity_cylindrical_z'),
('all', 'particle_velocity_magnitude'),
('all', 'particle_velocity_relative'),
('all', 'particle_velocity_relative_x'),
('all', 'particle_velocity_relative_y'),
('all', 'particle_velocity_relative_z'),
('all', 'particle_velocity_spherical_phi'),
('all', 'particle_velocity_spherical_radius'),
('all', 'particle_velocity_spherical_theta'),
('all', 'particle_velocity_x'),
('all', 'particle_velocity_y'),
('all', 'particle_velocity_z'),
('all', 'relative_particle_position'),
('all', 'relative_particle_position_x'),
('all', 'relative_particle_position_y'),
('all', 'relative_particle_position_z'),
('all', 'relative_particle_velocity'),
('all', 'relative_particle_velocity_x'),
('all', 'relative_particle_velocity_y'),
('all', 'relative_particle_velocity_z'),
('all', 'sn_mass_ejected'),
('all', 'wind_mass_ejected'),
('deposit', 'all_cic'),
('deposit', 'all_cic_age'),
('deposit', 'all_cic_velocity_x'),
('deposit', 'all_cic_velocity_y'),
('deposit', 'all_cic_velocity_z'),
('deposit', 'all_count'),
('deposit', 'all_density'),
('deposit', 'all_mass'),
('deposit', 'all_nn_age'),
('deposit', 'all_nn_velocity_x'),
('deposit', 'all_nn_velocity_y'),
('deposit', 'all_nn_velocity_z'),
('deposit', 'io_cic'),
('deposit', 'io_cic_age'),
('deposit', 'io_cic_velocity_x'),
('deposit', 'io_cic_velocity_y'),
('deposit', 'io_cic_velocity_z'),
('deposit', 'io_count'),
('deposit', 'io_density'),
('deposit', 'io_mass'),
('deposit', 'io_nn_age'),
('deposit', 'io_nn_velocity_x'),
('deposit', 'io_nn_velocity_y'),
('deposit', 'io_nn_velocity_z'),
('deposit', 'low_mass_stars_cic'),
('deposit', 'low_mass_stars_cic_age'),
('deposit', 'low_mass_stars_cic_velocity_x'),
('deposit', 'low_mass_stars_cic_velocity_y'),
('deposit', 'low_mass_stars_cic_velocity_z'),
('deposit', 'low_mass_stars_count'),
('deposit', 'low_mass_stars_density'),
('deposit', 'low_mass_stars_mass'),
('deposit', 'low_mass_stars_nn_age'),
('deposit', 'low_mass_stars_nn_velocity_x'),
('deposit', 'low_mass_stars_nn_velocity_y'),
('deposit', 'low_mass_stars_nn_velocity_z'),
('deposit', 'low_mass_unresolved_stars_cic'),
('deposit', 'low_mass_unresolved_stars_cic_age'),
('deposit', 'low_mass_unresolved_stars_cic_velocity_x'),
('deposit', 'low_mass_unresolved_stars_cic_velocity_y'),
('deposit', 'low_mass_unresolved_stars_cic_velocity_z'),
('deposit', 'low_mass_unresolved_stars_count'),
('deposit', 'low_mass_unresolved_stars_density'),
('deposit', 'low_mass_unresolved_stars_mass'),
('deposit', 'low_mass_unresolved_stars_nn_age'),
('deposit', 'low_mass_unresolved_stars_nn_velocity_x'),
('deposit', 'low_mass_unresolved_stars_nn_velocity_y'),
('deposit', 'low_mass_unresolved_stars_nn_velocity_z'),
('deposit', 'main_sequence_popIII_stars_cic'),
('deposit', 'main_sequence_popIII_stars_cic_age'),
('deposit', 'main_sequence_popIII_stars_cic_velocity_x'),
('deposit', 'main_sequence_popIII_stars_cic_velocity_y'),
('deposit', 'main_sequence_popIII_stars_cic_velocity_z'),
('deposit', 'main_sequence_popIII_stars_count'),
('deposit', 'main_sequence_popIII_stars_density'),
('deposit', 'main_sequence_popIII_stars_mass'),
('deposit', 'main_sequence_popIII_stars_nn_age'),
('deposit', 'main_sequence_popIII_stars_nn_velocity_x'),
('deposit', 'main_sequence_popIII_stars_nn_velocity_y'),
('deposit', 'main_sequence_popIII_stars_nn_velocity_z'),
('deposit', 'main_sequence_stars_cic'),
('deposit', 'main_sequence_stars_cic_age'),
('deposit', 'main_sequence_stars_cic_velocity_x'),
('deposit', 'main_sequence_stars_cic_velocity_y'),
('deposit', 'main_sequence_stars_cic_velocity_z'),
('deposit', 'main_sequence_stars_count'),
('deposit', 'main_sequence_stars_density'),
('deposit', 'main_sequence_stars_mass'),
('deposit', 'main_sequence_stars_nn_age'),
('deposit', 'main_sequence_stars_nn_velocity_x'),
('deposit', 'main_sequence_stars_nn_velocity_y'),
('deposit', 'main_sequence_stars_nn_velocity_z'),
('deposit', 'remnant_stars_cic'),
('deposit', 'remnant_stars_cic_age'),
('deposit', 'remnant_stars_cic_velocity_x'),
('deposit', 'remnant_stars_cic_velocity_y'),
('deposit', 'remnant_stars_cic_velocity_z'),
('deposit', 'remnant_stars_count'),
('deposit', 'remnant_stars_density'),
('deposit', 'remnant_stars_mass'),
('deposit', 'remnant_stars_nn_age'),
('deposit', 'remnant_stars_nn_velocity_x'),
('deposit', 'remnant_stars_nn_velocity_y'),
('deposit', 'remnant_stars_nn_velocity_z'),
('enzo', 'AGB_Metal_Density'),
('enzo', 'As_Density'),
('enzo', 'Ba_Density'),
('enzo', 'C_Density'),
('enzo', 'Ca_Density'),
('enzo', 'Dark_Matter_Density'),
('enzo', 'Density'),
('enzo', 'Electron_Density'),
('enzo', 'FUV_FluxDensity'),
('enzo', 'Fe_Density'),
('enzo', 'GasEnergy'),
('enzo', 'H2II_Density'),
('enzo', 'H2II_kdiss'),
('enzo', 'H2I_Density'),
('enzo', 'H2I_kdiss'),
('enzo', 'HII_Density'),
('enzo', 'HI_Density'),
('enzo', 'HI_kph'),
('enzo', 'HM_Density'),
('enzo', 'HM_kph'),
('enzo', 'HeIII_Density'),
('enzo', 'HeII_Density'),
('enzo', 'HeII_kph'),
('enzo', 'HeI_Density'),
('enzo', 'HeI_kph'),
('enzo', 'Metal_Density'),
('enzo', 'Mg_Density'),
('enzo', 'Mn_Density'),
('enzo', 'N_Density'),
('enzo', 'Na_Density'),
('enzo', 'Ni_Density'),
('enzo', 'O_Density'),
('enzo', 'Pe_heating_rate'),
('enzo', 'PhotoGamma'),
('enzo', 'PopIII_Metal_Density'),
('enzo', 'RadAccel1'),
('enzo', 'RadAccel2'),
('enzo', 'RadAccel3'),
('enzo', 'Ray_Segments'),
('enzo', 'SNII_Metal_Density'),
('enzo', 'SNIa_Metal_Density'),
('enzo', 'S_Density'),
('enzo', 'Si_Density'),
('enzo', 'Sr_Density'),
('enzo', 'Temperature'),
('enzo', 'TotalEnergy'),
('enzo', 'Y_Density'),
('enzo', 'cell_volume'),
('enzo', 'dx'),
('enzo', 'dy'),
('enzo', 'dz'),
('enzo', 'path_element_x'),
('enzo', 'path_element_y'),
('enzo', 'path_element_z'),
('enzo', 'vertex_x'),
('enzo', 'vertex_y'),
('enzo', 'vertex_z'),
('enzo', 'x'),
('enzo', 'x-velocity'),
('enzo', 'y'),
('enzo', 'y-velocity'),
('enzo', 'z'),
('enzo', 'z-velocity'),
('gas', 'As_Abundance'),
('gas', 'As_Density'),
('gas', 'As_Fraction'),
('gas', 'As_Mass'),
('gas', 'As_Number_Density'),
('gas', 'As_over_Ba'),
('gas', 'As_over_C'),
('gas', 'As_over_Fe'),
('gas', 'As_over_H'),
('gas', 'As_over_Mg'),
('gas', 'As_over_N'),
('gas', 'As_over_Na'),
('gas', 'As_over_Ni'),
('gas', 'As_over_O'),
('gas', 'Ba_Abundance'),
('gas', 'Ba_Density'),
('gas', 'Ba_Fraction'),
('gas', 'Ba_Mass'),
('gas', 'Ba_Number_Density'),
('gas', 'Ba_over_As'),
('gas', 'Ba_over_C'),
('gas', 'Ba_over_Ca'),
('gas', 'Ba_over_Fe'),
('gas', 'Ba_over_H'),
('gas', 'Ba_over_Mg'),
('gas', 'Ba_over_Mn'),
('gas', 'Ba_over_N'),
('gas', 'Ba_over_Na'),
('gas', 'Ba_over_Ni'),
('gas', 'Ba_over_O'),
('gas', 'Ba_over_S'),
('gas', 'Ba_over_Si'),
('gas', 'Ba_over_Sr'),
('gas', 'Ba_over_Y'),
('gas', 'C_Abundance'),
('gas', 'C_Density'),
('gas', 'C_Fraction'),
('gas', 'C_Mass'),
('gas', 'C_Number_Density'),
('gas', 'C_over_Ba'),
('gas', 'C_over_Fe'),
('gas', 'C_over_H'),
('gas', 'C_over_Mg'),
('gas', 'C_over_N'),
('gas', 'C_over_Na'),
('gas', 'C_over_Ni'),
('gas', 'C_over_O'),
('gas', 'Ca_Abundance'),
('gas', 'Ca_Density'),
('gas', 'Ca_Fraction'),
('gas', 'Ca_Mass'),
('gas', 'Ca_Number_Density'),
('gas', 'Ca_over_Ba'),
('gas', 'Ca_over_C'),
('gas', 'Ca_over_Fe'),
('gas', 'Ca_over_H'),
('gas', 'Ca_over_Mg'),
('gas', 'Ca_over_N'),
('gas', 'Ca_over_Na'),
('gas', 'Ca_over_Ni'),
('gas', 'Ca_over_O'),
('gas', 'El_density'),
('gas', 'El_fraction'),
('gas', 'El_mass'),
('gas', 'El_number_density'),
('gas', 'FUV_flux'),
('gas', 'Fe_Abundance'),
('gas', 'Fe_Density'),
('gas', 'Fe_Fraction'),
('gas', 'Fe_Mass'),
('gas', 'Fe_Number_Density'),
('gas', 'Fe_over_As'),
('gas', 'Fe_over_Ba'),
('gas', 'Fe_over_C'),
('gas', 'Fe_over_Ca'),
('gas', 'Fe_over_H'),
('gas', 'Fe_over_Mg'),
('gas', 'Fe_over_Mn'),
('gas', 'Fe_over_N'),
('gas', 'Fe_over_Na'),
('gas', 'Fe_over_Ni'),
('gas', 'Fe_over_O'),
('gas', 'Fe_over_S'),
('gas', 'Fe_over_Si'),
('gas', 'Fe_over_Sr'),
('gas', 'Fe_over_Y'),
('gas', 'G_eff'),
('gas', 'G_o'),
('gas', 'H2_density'),
('gas', 'H2_fraction'),
('gas', 'H2_mass'),
('gas', 'H2_number_density'),
('gas', 'H2_p0_density'),
('gas', 'H2_p0_fraction'),
('gas', 'H2_p0_mass'),
('gas', 'H2_p0_number_density'),
('gas', 'H2_p1_density'),
('gas', 'H2_p1_fraction'),
('gas', 'H2_p1_mass'),
('gas', 'H2_p1_number_density'),
('gas', 'H_Abundance'),
('gas', 'H_Mass'),
('gas', 'H_density'),
('gas', 'H_fraction'),
('gas', 'H_m1_density'),
('gas', 'H_m1_fraction'),
('gas', 'H_m1_mass'),
('gas', 'H_m1_number_density'),
('gas', 'H_mass'),
('gas', 'H_nuclei_density'),
('gas', 'H_number_density'),
('gas', 'H_p0_density'),
('gas', 'H_p0_fraction'),
('gas', 'H_p0_mass'),
('gas', 'H_p0_number_density'),
('gas', 'H_p1_density'),
('gas', 'H_p1_fraction'),
('gas', 'H_p1_mass'),
('gas', 'H_p1_number_density'),
('gas', 'H_total_mass'),
('gas', 'H_total_number_density'),
('gas', 'He_density'),
('gas', 'He_fraction'),
('gas', 'He_mass'),
('gas', 'He_nuclei_density'),
('gas', 'He_number_density'),
('gas', 'He_p0_density'),
('gas', 'He_p0_fraction'),
('gas', 'He_p0_mass'),
('gas', 'He_p0_number_density'),
('gas', 'He_p1_density'),
('gas', 'He_p1_fraction'),
('gas', 'He_p1_mass'),
('gas', 'He_p1_number_density'),
('gas', 'He_p2_density'),
('gas', 'He_p2_fraction'),
('gas', 'He_p2_mass'),
('gas', 'He_p2_number_density'),
('gas', 'He_total_mass'),
('gas', 'LW_flux'),
('gas', 'Metal_Density'),
('gas', 'Metal_Number_Density'),
('gas', 'Mg_Abundance'),
('gas', 'Mg_Density'),
('gas', 'Mg_Fraction'),
('gas', 'Mg_Mass'),
('gas', 'Mg_Number_Density'),
('gas', 'Mg_over_Ba'),
('gas', 'Mg_over_C'),
('gas', 'Mg_over_Fe'),
('gas', 'Mg_over_H'),
('gas', 'Mg_over_N'),
('gas', 'Mg_over_Na'),
('gas', 'Mg_over_Ni'),
('gas', 'Mg_over_O'),
('gas', 'Mn_Abundance'),
('gas', 'Mn_Density'),
('gas', 'Mn_Fraction'),
('gas', 'Mn_Mass'),
('gas', 'Mn_Number_Density'),
('gas', 'Mn_over_Ba'),
('gas', 'Mn_over_C'),
('gas', 'Mn_over_Fe'),
('gas', 'Mn_over_H'),
('gas', 'Mn_over_Mg'),
('gas', 'Mn_over_N'),
('gas', 'Mn_over_Na'),
('gas', 'Mn_over_Ni'),
('gas', 'Mn_over_O'),
('gas', 'N_Abundance'),
('gas', 'N_Density'),
('gas', 'N_Fraction'),
('gas', 'N_Mass'),
('gas', 'N_Number_Density'),
('gas', 'N_over_Ba'),
('gas', 'N_over_C'),
('gas', 'N_over_Fe'),
('gas', 'N_over_H'),
('gas', 'N_over_Mg'),
('gas', 'N_over_Na'),
('gas', 'N_over_Ni'),
('gas', 'N_over_O'),
('gas', 'Na_Abundance'),
('gas', 'Na_Density'),
('gas', 'Na_Fraction'),
('gas', 'Na_Mass'),
('gas', 'Na_Number_Density'),
('gas', 'Na_over_Ba'),
('gas', 'Na_over_C'),
('gas', 'Na_over_Fe'),
('gas', 'Na_over_H'),
('gas', 'Na_over_Mg'),
('gas', 'Na_over_N'),
('gas', 'Na_over_Ni'),
('gas', 'Na_over_O'),
('gas', 'Ni_Abundance'),
('gas', 'Ni_Density'),
('gas', 'Ni_Fraction'),
('gas', 'Ni_Mass'),
('gas', 'Ni_Number_Density'),
('gas', 'Ni_over_Ba'),
('gas', 'Ni_over_C'),
('gas', 'Ni_over_Fe'),
('gas', 'Ni_over_H'),
('gas', 'Ni_over_Mg'),
('gas', 'Ni_over_N'),
('gas', 'Ni_over_Na'),
('gas', 'Ni_over_O'),
('gas', 'OTLW_kdissH2I'),
('gas', 'O_Abundance'),
('gas', 'O_Density'),
('gas', 'O_Fraction'),
('gas', 'O_Mass'),
('gas', 'O_Number_Density'),
('gas', 'O_over_Ba'),
('gas', 'O_over_C'),
('gas', 'O_over_Fe'),
('gas', 'O_over_H'),
('gas', 'O_over_Mg'),
('gas', 'O_over_N'),
('gas', 'O_over_Na'),
('gas', 'O_over_Ni'),
('gas', 'Pe_heating_rate'),
('gas', 'Pe_heating_rate_masked'),
('gas', 'Q0_flux'),
('gas', 'Q1_flux'),
('gas', 'S_Abundance'),
('gas', 'S_Density'),
('gas', 'S_Fraction'),
('gas', 'S_Mass'),
('gas', 'S_Number_Density'),
('gas', 'S_over_Ba'),
('gas', 'S_over_C'),
('gas', 'S_over_Fe'),
('gas', 'S_over_H'),
('gas', 'S_over_Mg'),
('gas', 'S_over_N'),
('gas', 'S_over_Na'),
('gas', 'S_over_Ni'),
('gas', 'S_over_O'),
('gas', 'Si_Abundance'),
('gas', 'Si_Density'),
('gas', 'Si_Fraction'),
('gas', 'Si_Mass'),
('gas', 'Si_Number_Density'),
('gas', 'Si_over_Ba'),
('gas', 'Si_over_C'),
('gas', 'Si_over_Fe'),
('gas', 'Si_over_H'),
('gas', 'Si_over_Mg'),
('gas', 'Si_over_N'),
('gas', 'Si_over_Na'),
('gas', 'Si_over_Ni'),
('gas', 'Si_over_O'),
('gas', 'Sr_Abundance'),
('gas', 'Sr_Density'),
('gas', 'Sr_Fraction'),
('gas', 'Sr_Mass'),
('gas', 'Sr_Number_Density'),
('gas', 'Sr_over_Ba'),
('gas', 'Sr_over_C'),
('gas', 'Sr_over_Fe'),
('gas', 'Sr_over_H'),
('gas', 'Sr_over_Mg'),
('gas', 'Sr_over_N'),
('gas', 'Sr_over_Na'),
('gas', 'Sr_over_Ni'),
('gas', 'Sr_over_O'),
('gas', 'Y_Abundance'),
('gas', 'Y_Density'),
('gas', 'Y_Fraction'),
('gas', 'Y_Mass'),
('gas', 'Y_Number_Density'),
('gas', 'Y_over_Ba'),
('gas', 'Y_over_C'),
('gas', 'Y_over_Fe'),
('gas', 'Y_over_H'),
('gas', 'Y_over_Mg'),
('gas', 'Y_over_N'),
('gas', 'Y_over_Na'),
('gas', 'Y_over_Ni'),
('gas', 'Y_over_O'),
('gas', 'a_rad'),
('gas', 'alpha_Abundance'),
('gas', 'alpha_Mass'),
('gas', 'alpha_over_As'),
('gas', 'alpha_over_Ba'),
('gas', 'alpha_over_C'),
('gas', 'alpha_over_Ca'),
('gas', 'alpha_over_Fe'),
('gas', 'alpha_over_H'),
('gas', 'alpha_over_Mg'),
('gas', 'alpha_over_Mn'),
('gas', 'alpha_over_N'),
('gas', 'alpha_over_Na'),
('gas', 'alpha_over_Ni'),
('gas', 'alpha_over_O'),
('gas', 'alpha_over_S'),
('gas', 'alpha_over_Si'),
('gas', 'alpha_over_Sr'),
('gas', 'alpha_over_Y'),
('gas', 'angular_momentum_magnitude'),
('gas', 'angular_momentum_x'),
('gas', 'angular_momentum_y'),
('gas', 'angular_momentum_z'),
('gas', 'averaged_density'),
('gas', 'baroclinic_vorticity_magnitude'),
('gas', 'baroclinic_vorticity_x'),
('gas', 'baroclinic_vorticity_y'),
('gas', 'baroclinic_vorticity_z'),
('gas', 'baryon_overdensity'),
('gas', 'cell_mass'),
('gas', 'cell_volume'),
('gas', 'chandra_emissivity'),
('gas', 'courant_time_step'),
('gas', 'cutting_plane_velocity_x'),
('gas', 'cutting_plane_velocity_y'),
('gas', 'cutting_plane_velocity_z'),
('gas', 'cylindrical_radial_velocity'),
('gas', 'cylindrical_radial_velocity_absolute'),
('gas', 'cylindrical_tangential_velocity'),
('gas', 'cylindrical_tangential_velocity_absolute'),
('gas', 'dark_matter_density'),
('gas', 'density'),
('gas', 'density_gradient_magnitude'),
('gas', 'density_gradient_x'),
('gas', 'density_gradient_y'),
('gas', 'density_gradient_z'),
('gas', 'dx'),
('gas', 'dy'),
('gas', 'dynamical_time'),
('gas', 'dz'),
('gas', 'emission_measure'),
('gas', 'entropy'),
('gas', 'is_star_forming'),
('gas', 'jeans_mass'),
('gas', 'kT'),
('gas', 'kinetic_energy'),
('gas', 'mach_number'),
('gas', 'matter_density'),
('gas', 'matter_mass'),
('gas', 'matter_overdensity'),
('gas', 'mazzotta_weighting'),
('gas', 'mean_molecular_weight'),
('gas', 'metal_density'),
('gas', 'metal_mass'),
('gas', 'metallicity'),
('gas', 'number_density'),
('gas', 'overdensity'),
('gas', 'path_element_x'),
('gas', 'path_element_y'),
('gas', 'path_element_z'),
('gas', 'photo_gamma'),
('gas', 'pressure'),
('gas', 'pressure_gradient_magnitude'),
('gas', 'pressure_gradient_x'),
('gas', 'pressure_gradient_y'),
('gas', 'pressure_gradient_z'),
('gas', 'radial_mach_number'),
('gas', 'radial_velocity'),
('gas', 'radial_velocity_absolute'),
('gas', 'radiation_acceleration_x'),
('gas', 'radiation_acceleration_y'),
('gas', 'radiation_acceleration_z'),
('gas', 'relative_velocity_x'),
('gas', 'relative_velocity_y'),
('gas', 'relative_velocity_z'),
('gas', 'shear'),
('gas', 'shear_criterion'),
('gas', 'shear_mach'),
('gas', 'sound_speed'),
('gas', 'specific_angular_momentum_magnitude'),
('gas', 'specific_angular_momentum_x'),
('gas', 'specific_angular_momentum_y'),
('gas', 'specific_angular_momentum_z'),
('gas', 'sz_kinetic'),
('gas', 'szy'),
('gas', 'tangential_over_velocity_magnitude'),
('gas', 'tangential_velocity'),
('gas', 'temperature'),
('gas', 'thermal_energy'),
('gas', 'total_energy'),
('gas', 'velocity_cylindrical_radius'),
('gas', 'velocity_cylindrical_theta'),
('gas', 'velocity_cylindrical_z'),
('gas', 'velocity_divergence'),
('gas', 'velocity_divergence_absolute'),
('gas', 'velocity_magnitude'),
('gas', 'velocity_spherical_phi'),
('gas', 'velocity_spherical_radius'),
('gas', 'velocity_spherical_theta'),
('gas', 'velocity_x'),
('gas', 'velocity_y'),
('gas', 'velocity_z'),
('gas', 'vertex_x'),
('gas', 'vertex_y'),
('gas', 'vertex_z'),
('gas', 'vorticity_growth_magnitude'),
('gas', 'vorticity_growth_magnitude_absolute'),
('gas', 'vorticity_growth_timescale'),
('gas', 'vorticity_growth_x'),
('gas', 'vorticity_growth_y'),
('gas', 'vorticity_growth_z'),
('gas', 'vorticity_magnitude'),
('gas', 'vorticity_radiation_pressure_growth_magnitude'),
('gas', 'vorticity_radiation_pressure_growth_magnitude_absolute'),
('gas', 'vorticity_radiation_pressure_growth_timescale'),
('gas', 'vorticity_radiation_pressure_growth_x'),
('gas', 'vorticity_radiation_pressure_growth_y'),
('gas', 'vorticity_radiation_pressure_growth_z'),
('gas', 'vorticity_radiation_pressure_magnitude'),
('gas', 'vorticity_radiation_pressure_x'),
('gas', 'vorticity_radiation_pressure_y'),
('gas', 'vorticity_radiation_pressure_z'),
('gas', 'vorticity_squared'),
('gas', 'vorticity_stretching_magnitude'),
('gas', 'vorticity_stretching_x'),
('gas', 'vorticity_stretching_y'),
('gas', 'vorticity_stretching_z'),
('gas', 'vorticity_x'),
('gas', 'vorticity_y'),
('gas', 'vorticity_z'),
('gas', 'weak_lensing_convergence'),
('gas', 'x'),
('gas', 'xray_emissivity'),
('gas', 'y'),
('gas', 'z'),
('index', 'DM_background_density'),
('index', 'DM_background_potential'),
('index', 'cell_volume'),
('index', 'cylindrical_r'),
('index', 'cylindrical_radius'),
('index', 'cylindrical_theta'),
('index', 'cylindrical_z'),
('index', 'disk_angle'),
('index', 'dx'),
('index', 'dy'),
('index', 'dz'),
('index', 'grid_indices'),
('index', 'grid_level'),
('index', 'height'),
('index', 'magnitude_cylindrical_radius'),
('index', 'magnitude_cylindrical_z'),
('index', 'morton_index'),
('index', 'ones'),
('index', 'ones_over_dx'),
('index', 'path_element_x'),
('index', 'path_element_y'),
('index', 'path_element_z'),
('index', 'radius'),
('index', 'spherical_phi'),
('index', 'spherical_r'),
('index', 'spherical_radius'),
('index', 'spherical_theta'),
('index', 'vertex_x'),
('index', 'vertex_y'),
('index', 'vertex_z'),
('index', 'virial_radius_fraction'),
('index', 'x'),
('index', 'y'),
('index', 'z'),
('index', 'zeros'),
('io', 'age'),
('io', 'birth_mass'),
('io', 'creation_time'),
('io', 'dynamical_time'),
('io', 'mesh_id'),
('io', 'metallicity_fraction'),
('io', 'particle_age'),
('io', 'particle_angular_momentum'),
('io', 'particle_angular_momentum_magnitude'),
('io', 'particle_angular_momentum_x'),
('io', 'particle_angular_momentum_y'),
('io', 'particle_angular_momentum_z'),
('io', 'particle_cylindrical_velocity_theta'),
('io', 'particle_cylindrical_velocity_z'),
('io', 'particle_index'),
('io', 'particle_mass'),
('io', 'particle_model_E0'),
('io', 'particle_model_E1'),
('io', 'particle_model_L0'),
('io', 'particle_model_L1'),
('io', 'particle_model_L_1_3eV'),
('io', 'particle_model_L_FUV'),
('io', 'particle_model_L_LW'),
('io', 'particle_model_Q0'),
('io', 'particle_model_Q1'),
('io', 'particle_model_R'),
('io', 'particle_model_Teff'),
('io', 'particle_model_lifetime'),
('io', 'particle_model_luminosity'),
('io', 'particle_ones'),
('io', 'particle_position'),
('io', 'particle_position_cylindrical_radius'),
('io', 'particle_position_cylindrical_theta'),
('io', 'particle_position_cylindrical_z'),
('io', 'particle_position_relative'),
('io', 'particle_position_relative_x'),
('io', 'particle_position_relative_y'),
('io', 'particle_position_relative_z'),
('io', 'particle_position_spherical_phi'),
('io', 'particle_position_spherical_radius'),
('io', 'particle_position_spherical_theta'),
('io', 'particle_position_x'),
('io', 'particle_position_y'),
('io', 'particle_position_z'),
('io', 'particle_radial_velocity'),
('io', 'particle_radius'),
('io', 'particle_specific_angular_momentum'),
('io', 'particle_specific_angular_momentum_x'),
('io', 'particle_specific_angular_momentum_y'),
('io', 'particle_specific_angular_momentum_z'),
('io', 'particle_spherical_position_phi'),
('io', 'particle_spherical_position_radius'),
('io', 'particle_spherical_position_theta'),
('io', 'particle_spherical_velocity_phi'),
('io', 'particle_spherical_velocity_radius'),
('io', 'particle_spherical_velocity_theta'),
('io', 'particle_type'),
('io', 'particle_velocity'),
('io', 'particle_velocity_cylindrical_radius'),
('io', 'particle_velocity_cylindrical_theta'),
('io', 'particle_velocity_cylindrical_z'),
('io', 'particle_velocity_magnitude'),
('io', 'particle_velocity_relative'),
('io', 'particle_velocity_relative_x'),
('io', 'particle_velocity_relative_y'),
('io', 'particle_velocity_relative_z'),
('io', 'particle_velocity_spherical_phi'),
('io', 'particle_velocity_spherical_radius'),
('io', 'particle_velocity_spherical_theta'),
('io', 'particle_velocity_x'),
('io', 'particle_velocity_y'),
('io', 'particle_velocity_z'),
('io', 'relative_particle_position'),
('io', 'relative_particle_position_x'),
('io', 'relative_particle_position_y'),
('io', 'relative_particle_position_z'),
('io', 'relative_particle_velocity'),
('io', 'relative_particle_velocity_x'),
('io', 'relative_particle_velocity_y'),
('io', 'relative_particle_velocity_z'),
('io', 'sn_mass_ejected'),
('io', 'wind_mass_ejected'),
('low_mass_stars', 'age'),
('low_mass_stars', 'birth_mass'),
('low_mass_stars', 'creation_time'),
('low_mass_stars', 'dynamical_time'),
('low_mass_stars', 'mesh_id'),
('low_mass_stars', 'metallicity_fraction'),
('low_mass_stars', 'particle_angular_momentum'),
('low_mass_stars', 'particle_angular_momentum_magnitude'),
('low_mass_stars', 'particle_angular_momentum_x'),
('low_mass_stars', 'particle_angular_momentum_y'),
('low_mass_stars', 'particle_angular_momentum_z'),
('low_mass_stars', 'particle_cylindrical_velocity_theta'),
('low_mass_stars', 'particle_cylindrical_velocity_z'),
('low_mass_stars', 'particle_index'),
('low_mass_stars', 'particle_mass'),
('low_mass_stars', 'particle_ones'),
('low_mass_stars', 'particle_position'),
('low_mass_stars', 'particle_position_cylindrical_radius'),
('low_mass_stars', 'particle_position_cylindrical_theta'),
('low_mass_stars', 'particle_position_cylindrical_z'),
('low_mass_stars', 'particle_position_relative'),
('low_mass_stars', 'particle_position_relative_x'),
('low_mass_stars', 'particle_position_relative_y'),
('low_mass_stars', 'particle_position_relative_z'),
('low_mass_stars', 'particle_position_spherical_phi'),
('low_mass_stars', 'particle_position_spherical_radius'),
('low_mass_stars', 'particle_position_spherical_theta'),
('low_mass_stars', 'particle_position_x'),
('low_mass_stars', 'particle_position_y'),
('low_mass_stars', 'particle_position_z'),
('low_mass_stars', 'particle_radial_velocity'),
('low_mass_stars', 'particle_radius'),
('low_mass_stars', 'particle_specific_angular_momentum'),
('low_mass_stars', 'particle_specific_angular_momentum_x'),
('low_mass_stars', 'particle_specific_angular_momentum_y'),
('low_mass_stars', 'particle_specific_angular_momentum_z'),
('low_mass_stars', 'particle_spherical_position_phi'),
('low_mass_stars', 'particle_spherical_position_radius'),
('low_mass_stars', 'particle_spherical_position_theta'),
('low_mass_stars', 'particle_spherical_velocity_phi'),
('low_mass_stars', 'particle_spherical_velocity_radius'),
('low_mass_stars', 'particle_spherical_velocity_theta'),
('low_mass_stars', 'particle_type'),
('low_mass_stars', 'particle_velocity'),
('low_mass_stars', 'particle_velocity_cylindrical_radius'),
('low_mass_stars', 'particle_velocity_cylindrical_theta'),
('low_mass_stars', 'particle_velocity_cylindrical_z'),
('low_mass_stars', 'particle_velocity_magnitude'),
('low_mass_stars', 'particle_velocity_relative'),
('low_mass_stars', 'particle_velocity_relative_x'),
('low_mass_stars', 'particle_velocity_relative_y'),
('low_mass_stars', 'particle_velocity_relative_z'),
('low_mass_stars', 'particle_velocity_spherical_phi'),
('low_mass_stars', 'particle_velocity_spherical_radius'),
('low_mass_stars', 'particle_velocity_spherical_theta'),
('low_mass_stars', 'particle_velocity_x'),
('low_mass_stars', 'particle_velocity_y'),
('low_mass_stars', 'particle_velocity_z'),
('low_mass_stars', 'relative_particle_position'),
('low_mass_stars', 'relative_particle_position_x'),
('low_mass_stars', 'relative_particle_position_y'),
('low_mass_stars', 'relative_particle_position_z'),
('low_mass_stars', 'relative_particle_velocity'),
('low_mass_stars', 'relative_particle_velocity_x'),
('low_mass_stars', 'relative_particle_velocity_y'),
('low_mass_stars', 'relative_particle_velocity_z'),
('low_mass_stars', 'sn_mass_ejected'),
('low_mass_stars', 'wind_mass_ejected'),
('low_mass_unresolved_stars', 'age'),
('low_mass_unresolved_stars', 'birth_mass'),
('low_mass_unresolved_stars', 'creation_time'),
('low_mass_unresolved_stars', 'dynamical_time'),
('low_mass_unresolved_stars', 'mesh_id'),
('low_mass_unresolved_stars', 'metallicity_fraction'),
('low_mass_unresolved_stars', 'particle_angular_momentum'),
('low_mass_unresolved_stars', 'particle_angular_momentum_magnitude'),
('low_mass_unresolved_stars', 'particle_angular_momentum_x'),
('low_mass_unresolved_stars', 'particle_angular_momentum_y'),
('low_mass_unresolved_stars', 'particle_angular_momentum_z'),
('low_mass_unresolved_stars', 'particle_cylindrical_velocity_theta'),
('low_mass_unresolved_stars', 'particle_cylindrical_velocity_z'),
('low_mass_unresolved_stars', 'particle_index'),
('low_mass_unresolved_stars', 'particle_mass'),
('low_mass_unresolved_stars', 'particle_ones'),
('low_mass_unresolved_stars', 'particle_position'),
('low_mass_unresolved_stars', 'particle_position_cylindrical_radius'),
('low_mass_unresolved_stars', 'particle_position_cylindrical_theta'),
('low_mass_unresolved_stars', 'particle_position_cylindrical_z'),
('low_mass_unresolved_stars', 'particle_position_relative'),
('low_mass_unresolved_stars', 'particle_position_relative_x'),
('low_mass_unresolved_stars', 'particle_position_relative_y'),
('low_mass_unresolved_stars', 'particle_position_relative_z'),
('low_mass_unresolved_stars', 'particle_position_spherical_phi'),
('low_mass_unresolved_stars', 'particle_position_spherical_radius'),
('low_mass_unresolved_stars', 'particle_position_spherical_theta'),
('low_mass_unresolved_stars', 'particle_position_x'),
('low_mass_unresolved_stars', 'particle_position_y'),
('low_mass_unresolved_stars', 'particle_position_z'),
('low_mass_unresolved_stars', 'particle_radial_velocity'),
('low_mass_unresolved_stars', 'particle_radius'),
('low_mass_unresolved_stars', 'particle_specific_angular_momentum'),
('low_mass_unresolved_stars', 'particle_specific_angular_momentum_x'),
('low_mass_unresolved_stars', 'particle_specific_angular_momentum_y'),
('low_mass_unresolved_stars', 'particle_specific_angular_momentum_z'),
('low_mass_unresolved_stars', 'particle_spherical_position_phi'),
('low_mass_unresolved_stars', 'particle_spherical_position_radius'),
('low_mass_unresolved_stars', 'particle_spherical_position_theta'),
('low_mass_unresolved_stars', 'particle_spherical_velocity_phi'),
('low_mass_unresolved_stars', 'particle_spherical_velocity_radius'),
('low_mass_unresolved_stars', 'particle_spherical_velocity_theta'),
('low_mass_unresolved_stars', 'particle_type'),
('low_mass_unresolved_stars', 'particle_velocity'),
('low_mass_unresolved_stars', 'particle_velocity_cylindrical_radius'),
('low_mass_unresolved_stars', 'particle_velocity_cylindrical_theta'),
('low_mass_unresolved_stars', 'particle_velocity_cylindrical_z'),
('low_mass_unresolved_stars', 'particle_velocity_magnitude'),
('low_mass_unresolved_stars', 'particle_velocity_relative'),
('low_mass_unresolved_stars', 'particle_velocity_relative_x'),
('low_mass_unresolved_stars', 'particle_velocity_relative_y'),
('low_mass_unresolved_stars', 'particle_velocity_relative_z'),
('low_mass_unresolved_stars', 'particle_velocity_spherical_phi'),
('low_mass_unresolved_stars', 'particle_velocity_spherical_radius'),
('low_mass_unresolved_stars', 'particle_velocity_spherical_theta'),
('low_mass_unresolved_stars', 'particle_velocity_x'),
('low_mass_unresolved_stars', 'particle_velocity_y'),
('low_mass_unresolved_stars', 'particle_velocity_z'),
('low_mass_unresolved_stars', 'relative_particle_position'),
('low_mass_unresolved_stars', 'relative_particle_position_x'),
('low_mass_unresolved_stars', 'relative_particle_position_y'),
('low_mass_unresolved_stars', 'relative_particle_position_z'),
('low_mass_unresolved_stars', 'relative_particle_velocity'),
('low_mass_unresolved_stars', 'relative_particle_velocity_x'),
('low_mass_unresolved_stars', 'relative_particle_velocity_y'),
('low_mass_unresolved_stars', 'relative_particle_velocity_z'),
('low_mass_unresolved_stars', 'sn_mass_ejected'),
('low_mass_unresolved_stars', 'wind_mass_ejected'),
('main_sequence_popIII_stars', 'age'),
('main_sequence_popIII_stars', 'birth_mass'),
('main_sequence_popIII_stars', 'creation_time'),
('main_sequence_popIII_stars', 'dynamical_time'),
('main_sequence_popIII_stars', 'mesh_id'),
('main_sequence_popIII_stars', 'metallicity_fraction'),
('main_sequence_popIII_stars', 'particle_angular_momentum'),
('main_sequence_popIII_stars', 'particle_angular_momentum_magnitude'),
('main_sequence_popIII_stars', 'particle_angular_momentum_x'),
('main_sequence_popIII_stars', 'particle_angular_momentum_y'),
('main_sequence_popIII_stars', 'particle_angular_momentum_z'),
('main_sequence_popIII_stars', 'particle_cylindrical_velocity_theta'),
('main_sequence_popIII_stars', 'particle_cylindrical_velocity_z'),
('main_sequence_popIII_stars', 'particle_index'),
('main_sequence_popIII_stars', 'particle_mass'),
('main_sequence_popIII_stars', 'particle_ones'),
('main_sequence_popIII_stars', 'particle_position'),
('main_sequence_popIII_stars', 'particle_position_cylindrical_radius'),
('main_sequence_popIII_stars', 'particle_position_cylindrical_theta'),
('main_sequence_popIII_stars', 'particle_position_cylindrical_z'),
('main_sequence_popIII_stars', 'particle_position_relative'),
('main_sequence_popIII_stars', 'particle_position_relative_x'),
('main_sequence_popIII_stars', 'particle_position_relative_y'),
('main_sequence_popIII_stars', 'particle_position_relative_z'),
('main_sequence_popIII_stars', 'particle_position_spherical_phi'),
('main_sequence_popIII_stars', 'particle_position_spherical_radius'),
('main_sequence_popIII_stars', 'particle_position_spherical_theta'),
('main_sequence_popIII_stars', 'particle_position_x'),
('main_sequence_popIII_stars', 'particle_position_y'),
('main_sequence_popIII_stars', 'particle_position_z'),
('main_sequence_popIII_stars', 'particle_radial_velocity'),
('main_sequence_popIII_stars', 'particle_radius'),
('main_sequence_popIII_stars', 'particle_specific_angular_momentum'),
('main_sequence_popIII_stars', 'particle_specific_angular_momentum_x'),
('main_sequence_popIII_stars', 'particle_specific_angular_momentum_y'),
('main_sequence_popIII_stars', 'particle_specific_angular_momentum_z'),
('main_sequence_popIII_stars', 'particle_spherical_position_phi'),
('main_sequence_popIII_stars', 'particle_spherical_position_radius'),
('main_sequence_popIII_stars', 'particle_spherical_position_theta'),
('main_sequence_popIII_stars', 'particle_spherical_velocity_phi'),
('main_sequence_popIII_stars', 'particle_spherical_velocity_radius'),
('main_sequence_popIII_stars', 'particle_spherical_velocity_theta'),
('main_sequence_popIII_stars', 'particle_type'),
('main_sequence_popIII_stars', 'particle_velocity'),
('main_sequence_popIII_stars', 'particle_velocity_cylindrical_radius'),
('main_sequence_popIII_stars', 'particle_velocity_cylindrical_theta'),
('main_sequence_popIII_stars', 'particle_velocity_cylindrical_z'),
('main_sequence_popIII_stars', 'particle_velocity_magnitude'),
('main_sequence_popIII_stars', 'particle_velocity_relative'),
('main_sequence_popIII_stars', 'particle_velocity_relative_x'),
('main_sequence_popIII_stars', 'particle_velocity_relative_y'),
('main_sequence_popIII_stars', 'particle_velocity_relative_z'),
('main_sequence_popIII_stars', 'particle_velocity_spherical_phi'),
('main_sequence_popIII_stars', 'particle_velocity_spherical_radius'),
('main_sequence_popIII_stars', 'particle_velocity_spherical_theta'),
('main_sequence_popIII_stars', 'particle_velocity_x'),
('main_sequence_popIII_stars', 'particle_velocity_y'),
('main_sequence_popIII_stars', 'particle_velocity_z'),
('main_sequence_popIII_stars', 'relative_particle_position'),
('main_sequence_popIII_stars', 'relative_particle_position_x'),
('main_sequence_popIII_stars', 'relative_particle_position_y'),
('main_sequence_popIII_stars', 'relative_particle_position_z'),
('main_sequence_popIII_stars', 'relative_particle_velocity'),
('main_sequence_popIII_stars', 'relative_particle_velocity_x'),
('main_sequence_popIII_stars', 'relative_particle_velocity_y'),
('main_sequence_popIII_stars', 'relative_particle_velocity_z'),
('main_sequence_popIII_stars', 'sn_mass_ejected'),
('main_sequence_popIII_stars', 'wind_mass_ejected'),
('main_sequence_stars', 'age'),
('main_sequence_stars', 'birth_mass'),
('main_sequence_stars', 'creation_time'),
('main_sequence_stars', 'dynamical_time'),
('main_sequence_stars', 'mesh_id'),
('main_sequence_stars', 'metallicity_fraction'),
('main_sequence_stars', 'particle_angular_momentum'),
('main_sequence_stars', 'particle_angular_momentum_magnitude'),
('main_sequence_stars', 'particle_angular_momentum_x'),
('main_sequence_stars', 'particle_angular_momentum_y'),
('main_sequence_stars', 'particle_angular_momentum_z'),
('main_sequence_stars', 'particle_cylindrical_velocity_theta'),
('main_sequence_stars', 'particle_cylindrical_velocity_z'),
('main_sequence_stars', 'particle_index'),
('main_sequence_stars', 'particle_mass'),
('main_sequence_stars', 'particle_ones'),
('main_sequence_stars', 'particle_position'),
('main_sequence_stars', 'particle_position_cylindrical_radius'),
('main_sequence_stars', 'particle_position_cylindrical_theta'),
('main_sequence_stars', 'particle_position_cylindrical_z'),
('main_sequence_stars', 'particle_position_relative'),
('main_sequence_stars', 'particle_position_relative_x'),
('main_sequence_stars', 'particle_position_relative_y'),
('main_sequence_stars', 'particle_position_relative_z'),
('main_sequence_stars', 'particle_position_spherical_phi'),
('main_sequence_stars', 'particle_position_spherical_radius'),
('main_sequence_stars', 'particle_position_spherical_theta'),
('main_sequence_stars', 'particle_position_x'),
('main_sequence_stars', 'particle_position_y'),
('main_sequence_stars', 'particle_position_z'),
('main_sequence_stars', 'particle_radial_velocity'),
('main_sequence_stars', 'particle_radius'),
('main_sequence_stars', 'particle_specific_angular_momentum'),
('main_sequence_stars', 'particle_specific_angular_momentum_x'),
('main_sequence_stars', 'particle_specific_angular_momentum_y'),
('main_sequence_stars', 'particle_specific_angular_momentum_z'),
('main_sequence_stars', 'particle_spherical_position_phi'),
...]