Simple categories matching accidental:

• feature,
• noise,
• property,
• occurrence,
• event,
• condition,
• discharge,
• sound,
• error,
• death,
• contaminant,
• situation,
• incident,
• action,
• cause,
• losses,
• damage,
• trauma,
• release,
• signal,
• characteristic,
• fire,
• phenomenon,
• case,
• loss,
• disaster,

Members with property accidental:

• explosion,
• fire,
• aquarium_release,
• cross_connection,
• weakness,
• special,
• certain_quality,
• disease,
• collision,
• vascular_injury,
• landfill_fire,
• theft,
• loss,
• ice_surge,
• electrical_equipment,
• sneezing,
• kitchen_fire,
• user_damage,
• modification,
• transport_accident,
• impact,
• wind,
• fuel,
• water_damage,
• passing_train,
• automobile_crash,
• leakage,
• plumbing_failure,
• vandalism,
• strength,
• chernobyl_accident,
• sudden_fall,
• human_error,
• adequate_emergency,
• motor,
• karaoke_fire,
• vehicular_collision,
• health_loss,
• expropriation,
• improvement,
• passing,
• unintentional_disclosure,
• losses,
• plane_crash,
• transportation_accident,
• injury,
• blast,
• noise,
• fault,
• fugitive_emission,
• system_failure,
• blunt_trauma,
• train_derailment,
• random_mutation,
• flood,
• personal_quality,
• deletion,
• car_wreck,
• vessel_collision,
• weight,
• storm,
• economic_wellbeing,
• suicide,
• pipe_explosion,
• railroad,
• inundation,
• shadow,
• dimension,
• accident,
• disaster,
• disposal_site,
• tanker_incident,
• dam_failure,
• failure,
• black_death,
• squeak,
• giant,
• major_leak,
• heating_devices,
• human_mistake,
• transportation,
• sexy_voice,
• restorative_dentistry,
• extraneous_noise,
• physical_malfunction,
• magnesium_explosion,
• leak,
• spinal-cord_injury,
• industrial_development,
• infectious_disease,
• house_fire,
• aircraft_crash,
• rebellion,
• split_drum,
• car_accident,
• key_compromise,
• trip,
• focusing_error,
• virus,
• power,
• production_defect,
• channel,
• lightning,
• internal_explosion,
• robbery,
• storm_damage,
• spinal_injury,
• scraping_nose,
• medical_emergency,
• pipeline_failure,
• backflow,
• uprising,
• exposure,
• valve,
• hair_color,
• bow_squeak,
• process_losses,
• mold,
• mechanical_devices,
• corruption,
• surface_texture,
• toxic_release,
• ship_collision,
• oil,
• percussive_impact,
• chance,
• infection,
• wire,
• quality,
• physical_damage,
• roadside_accident,
• ship_impact,
• illness,
• change,
• earthquake_damage,
• incipient_ridge,
• aircraft_impact,
• larceny,
• sack,
• derailment,
• industrial_chemical,
• due,
• discharge,
• volume,
• property_damage,
• war,
• holdup,
• repair,
• gas_explosion,
• impact_pressure,
• strangulation,
• operator_error,
• fall,
• soil_failure,
• trouble,
• flow_blockage,
• attrition,
• texture,
• subsidiary_ridge,
• short_circuit,
• chemical_explosion,
• hurricane_damage,
• natural_disaster,
• suffocation,
• slip,
• faulty_heating,
• flat_battery,
• member_crash,
• spillage,
• break,
• scar,
• flow_block,
• capability,
• sound,
• auto_accident,
• gasoline,
• traffic_accident,
• illicit_drug,
• quality_losses,
• transportation_disaster,
• pesticide,
• technological_disaster,
• earthquake,