Category Nuances matching occurrence:

• extraordinary,
• untoward,
• unforeseen,
• natural,
• periodic,
• ordinary,
• environmental,
• geographical,
• single,
• unusual,
• unexpected,
• dangerous,
• benign,
• stressful,
• common,
• annual,
• commonplace,
• terrifying,
• awesome,
• unfortunate,
• criminal,
• weather,
• normal,
• outdoor,
• odd,
• irregular,
• deadly,
• uncertain,
• harmful,
• catastrophic,
• organizational,
• sudden,
• autonomic,
• abnormal,
• unpredictable,
• dramatic,
• devastating,
• possible,
• happy,
• traumatic,
• external,
• special,
• unanticipated,
• historical,
• future,
• musical,
• local,
• operational,
• major,
• adverse,
• social,
• violent,
• political,
• medical,
• unavoidable,
• everyday,
• geologic,
• exogenous,
• costly,
• unforeseeable,
• astronomical,
• positive,
• localised,
• rare,
• simple,
• unlikely,
• acoustic,
• unique,
• strange,
• specified,
• damaging,
• significant,
• physical,
• supernatural,
• transient,
• extreme,
• tragic,
• disastrous,
• relevant,
• meaningful,
• inanimate,
• serious,
• unpleasant,
• dynamic,
• planned,
• exceptional,
• negative,
• corporeal,
• seasonal,
• interesting,
• neurologic,
• seismic,
• neurological,
• small,
• unplanned,
• routine,
• internal,
• cataclysmic,
• elemental,
• temporary,
• discrete,
• unwanted,
• superficial,
• miscellaneous,
• recent,
• severe,
• undesirable,
• random,
• disruptive,
• accidental,
• climatic,
• deviant,
• spontaneous,
• infrequent,
• motivational,
• cosmic,
• interactive,
• outside,
• hazardous,

Members for simple category occurrence:

• armed_robbery,
• motion,
• flood,
• fire,
• adverse_reaction,
• crop_circle,
• stroke,
• gas-line_leak,
• sonic_boom,
• serious_injury,
• accident,
• sunset,
• explosion,
• international_conflict,
• upset,
• colonization,
• strike,
• huge_wind,
• initiation,
• apparition,
• infection,
• storm,
• natural_disaster,
• landslide,
• major_storm,
• vibration,
• unexplained_absence,
• lightning_strike,
• olympics,
• footstep,
• clatter,
• theft_wreck,
• sunday_accident,
• actual_event,
• theft,
• error_condition,
• electrical_injury,
• losses,
• reverse,
• diplomatic_mission,
• environmental_infraction,
• community_emergency,
• helpdesk_service,
• voice,
• high_wind,
• change,
• motor-vehicle_collision,
• excess_tool,
• epidemic_outbreak,
• hostage_situation,
• nazi_genocide,
• platelet_aggregation,
• cardiac_arrest,
• determination,
• neurotoxic_poisoning,
• chance_coincidence,
• connection_failure,
• marriage,
• pollen_flow,
• ischemic_event,
• scratch,
• criminal_damage,
• desertion,
• user_error,
• shipwreck,
• traffic_accident,
• connection,
• medical_crisis,
• train,
• hospital_readmission,
• impact,
• solar_eclipse,
• system_crash,
• abuse,
• coaching_change,
• emergency_requirement,
• supernova_explosion,
• property_damage,
• racism,
• major_war,
• credit_risk,
• pump_failure,
• human_sacrifice,
• deadly_accident,
• pressure,
• pedestrian_accident,
• data_migration,
• muscle_fatigue,
• terrible_claim,
• wind_speed,
• extraneous_noise,
• infant_abduction,
• mechanical_shock,
• corruption,
• giraffe_feeding,
• glacial_cycle,
• construction_activity,
• seismic_event,
• human_error,
• vandalism,
• shoplifting,
• injury,
• traumatic_event,
• facility_fire,
• family_reunion,
• mutiny,
• torture,
• long_delay,
• vacation,
• cracking,
• lawsuit,
• adult_stroke,
• smell,
• protocol_violation,
• casualty,
• prodigy,
• overexposure,
• racial_violence,
• cooking,
• sleep_loss,
• political_upheaval,
• operator_error,
• creation,
• tsunami,
• company_reorganization,
• substance_use,
• demolition,
• subsidence,
• invasion,
• startup,
• car_crash,
• electrocution,
• music,
• discount,
• fraud,
• evacuation,
• shutdown,
• fashion,
• animal_movement,
• weather_damage,
• ice_cover,
• temperature_variation,
• volcanic_eruption,
• backup,
• phone-line_failure,
• unsafe_travel,
• prediction_error,
• broken_wind,
• ear_infection,
• trip,
• terrorist_attack,
• power_transient,
• education,
• success,
• pulse,
• confusion,
• head_wind,
• collapse,
• building_fire,
• encountering_failure,
• paying_bill,
• spasm,
• monsoon_storm,
• eerie_sound,
• log_jam,
• blood_flow,
• staff_turnover,
• premature_baby,
• vietnam_conflict,
• disclosure,
• event,
• breeze,
• storm_surge,
• economic_activity,
• suicide_attempt,
• home_accident,
• ritualistic_murder,
• volcanic_activity,
• food_spillage,
• memory_impairment,
• wound,
• drunken_brawl,
• summer_vacation,
• frog_call,
• bioterrorism,
• leakage,
• pest_damage,
• colonisation,
• election_result,
• passage,
• chemical_release,
• automotive_strike,
• demonstration,
• refund,
• care,
• cashing_check,
• sleepwalking,
• leak,
• lane_closure,
• international_catastrophe,
• professional_meeting,
• nosocomial_infection,
• prohibition,
• election,
• tuskegee_study,
• departure,
• magic,
• tropical_storm,
• refueling,
• stoppage,
• cultural_issue,
• plant_growth,
• stream,
• fatality,
• omen,
• medical_difficulty,
• poor_recovery,
• lighting,
• cat,
• sudden_injury,
• hot_box,
• car_trouble,
• exercise,
• power_sales,
• assault,
• papal_pilgrimage,
• job,
• fender_bender,
• road-rage_incident,
• system_failure,
• heavy_landing,
• count,
• tragic_accident,
• disease_outbreak,
• glacial_activity,
• vaccination,
• flat_battery,
• configuration_change,
• onetime_event,
• meteor_impact,
• unusual_storm,
• sudden_death,
• catastrophe,
• capsizing,
• excess_management,
• bomb_explosion,
• investigation,
• debris_torrent,
• argument,
• harvest,
• agricultural_activity,
• separation,
• hardware_failure,
• early_marriage,
• presence,
• club_closing,
• trial,
• plane_crash,
• roof_collapse,
• accidental_death,
• main_break,
• nap_times,
• life_event,
• miracle,
• nanking_incident,
• growling,
• moon_landing,
• natural_catastrophe,
• economic_change,
• attempted_escape,
• show,
• shark_attack,
• spillage,
• nepotism,
• riot,
• escape,
• budget_constraint,
• grounding,
• bathing,
• solar_variation,
• earth_revolution,
• traffic,
• virtual_organization,
• religious_purification,
• animal_bite,
• economic_depression,
• incident,
• perinatal_death,
• regulatory_change,
• stampede,
• vehicle_accident,
• chance_encounter,
• trench_collapse,
• residential_choice,
• shock,
• bus_contention,
• diversion,
• yield,
• boiler_explosion,
• severe_infection,
• festival,
• interruption,
• flow_change,
• sinus_infection,
• bankruptcy,
• skin_tag,
• crash,
• unusual_vibration,
• concert,
• major_fire,
• sex_scandal,
• sacrifice,
• strong_wind,
• vice,
• pitch_invasion,
• foot,
• aftermath,
• timing,
• database_corruption,
• weather_pattern,
• temporary_remission,
• housing_recession,
• failure,
• tidal_wave,
• look,
• medical_emergency,
• star_war,
• brain_infection,
• ice_buildup,
• conversion_success,
• major_design,
• waiting_time,
• sporting_event,
• acquisition,
• public_event,
• leaf_fall,
• smear,
• early_shutdown,
• arrest,
• vision_change,
• bell_ringing,
• scald_accident,
• strong_storm,
• agriculture,
• breakup,
• unexplained_noise,
• criminal_act,
• regicide,
• home_invasion,
• road_works,
• gamma-ray_burst,
• crisis,
• crime,
• brain_injury,
• merger,
• power_supply,
• newspaper_delivery,
• respiratory_arrest,
• job_change,
• festivity,
• labor_strike,
• card_failure,
• laughter,
• threat,
• absenteeism,
• specific_catastrophe,
• safety,
• apocalypse,
• loss,
• avalanche,
• severe_storm,
• prison_disturbance,
• multiple_killing,
• tension,
• promotion,
• train_wreck,
• delay,
• equipment_breakdown,
• political_rally,
• accidental_erasure,
• twin_birth,
• circumcision,
• intentional_injury,
• water-main_break,
• insect_attack,
• low_bill,
• discharge,
• robbery,
• crusade,
• extended-family_reunion,
• layoff,
• mental_occurrence,
• pogrom,
• chimney_sweep,
• dad_recovery,
• health_issue,
• brief_case,
• midair_collision,
• downsizing,
• online_auction,
• blockage,
• fall,
• lockout,
• accidental_breakage,
• ozone_depletion,
• extortion,
• sexual_lust,
• smoke,
• gas_leak,
• neglect_fatality,
• emergency_hospitalization,
• mugging,
• lethal_weapon,
• electricity_failure,
• legal_suit,
• burglary,
• transformer_explosion,
• meeting,
• eclipse,
• delivery,
• birth,
• no_show,
• battle,
• redemption,
• funeral,
• structural_collapse,
• wind,
• growth,
• bath_time,
• manifestation,
• revelation,
• major_emission,
• fire_accident,
• collectivization,
• emergency,
• slide,
• encounter,
• epileptic_seizure,
• alarm_activation,
• chemical_spillage,
• fuel_increase,
• lighting_storm,
• sack,
• violation,
• bomb_threat,
• unexpected_increase,
• winter_storm,
• normal_retirement,
• surgery,
• medication_error,
• electrical_storm,
• collection,
• tectonic_activity,
• solar_flare,
• president,
• spiritual_marriage,
• online_sales,
• blowout,
• incorrect_address,
• destruction,
• processing_delay,
• bang,
• sale,
• war,
• south-african_war,
• audit,
• hostage_crisis,
• suicide,
• electrical_discharge,
• special_event,
• ligament_tension,
• collision,
• mysterious_footstep,
• customer_relations,
• mechanical_deformation,
• divorce,
• sound,
• leadership,
• air_disaster,
• trade,
• data_error,
• water_damage,
• end,
• rock,
• party,
• shooting,
• electrostatic_discharge,
• release,
• retirement_payment,
• sign,
• structural_damage,
• motion_hearing,
• oxygen_leakage,
• measurement,
• back_order,
• data_corruption,
• postoperative_infection,
• resurrection,
• crop_response,
• extreme_heat,
• inflation,
• family_crisis,
• falling_injury,
• vomiting,
• car_accident,
• storm_damage,
• meal_preparation,
• misfortune,
• resignation,
• volcano_eruption,
• diagnosis_disclosure,
• sabotage,
• excessive_heat,
• maximum_damage,
• levitation,
• result,
• pay_raise,
• split_drum,
• emergency_outage,
• retirement,
• sport,
• social_exclusion,
• road_closure,
• appearance,
• donation,
• consequent_accumulation,
• alarm_notification,
• spiral,
• significant_injury,
• imminent_danger,
• fault,
• job_finding,
• extreme_storm,
• weather_phenomenon,
• examination,
• knock,
• patient_complication,
• mental_lapse,
• special_request,
• increased_chore,
• vehicle_breakdown,
• disembodied_voice,
• burglary_fire,
• landslip,
• domestic_violence,
• sequestration,
• environmental_disaster,
• building_collapse,
• serious_breakdown,
• job_loss,
• predation,
• church,
• outbreak,
• epidemic,
• liquidation,
• kitchen_fire,
• removal,
• power_surge,
• seizure,
• radiation,
• moving_chair,
• settlement_gap,
• large_storm,
• tree_movement,
• fatigue,
• work,
• termination,
• recurrent_flood,
• visit,
• mechanical_pressure,
• extraordinary_behaviour,
• anaesthetic_death,
• farming,
• hi_miracle,
• casualty_losses,
• attrition,
• exception,
• bank_robbery,
• flue_fire,
• great_storm,
• organ_failure,
• serious_accident,
• network_shutdown,
• parade,
• death,
• truck_accident,
• repair,
• motor-vehicle_accident,
• assignment,
• banging,
• holy-father_funeral,
• sentinel_event,
• premonition,
• volcanic_formation,
• waterline_break,
• mudslide,
• accidental_damage,
• feeling_wind,
• weather_change,
• friendly_combat,
• hunting,
• murder,
• smudge,
• lightning_storm,
• ice_advance,
• training,
• famine,
• eye_irritation,
• hypoglycemic_attack,
• rain_storm,
• core_startup,
• catastrophic_event,
• medical_error,
• spike,
• public-speaking_event,
• unintentional_disclosure,
• curse,
• damaging_wind,
• defoliation,
• terror_threat,
• planned_occurrence,
• criminal_activity,
• vascular_accident,
• major_shift,
• exchange,
• wild_fire,
• pitch,
• church-building_dedication,
• decrease,
• ground_leak,
• lightning,
• mouth,
• migration,
• collection_claim,
• life-insurance_protection,
• shower,
• snow_avalanche,
• default,
• hospitalization,
• emergency_evacuation,
• animal_behaviour,
• untimely_death,
• excessive_waste,
• royal_visit,
• revolution,
• client_altercation,
• elimination,
• pressure_variation,
• disaster,
• gateway_startup,
• major_stroke,
• target_set,
• family_emergency,
• breakdown,
• direction,
• parent_divorce,
• malicious_damage,
• piece,
• infiltration,
• terrific_thunder,
• disappearance,
• bit_bounce,
• deposition,
• accident_release,
• increasing_industrialization,
• condition,
• automobile_accident,
• unplanned_readmission,
• quality_lapse,
• pest_outbreak,
• payment,
• bomb,
• whirl,
• apparent_return,
• imperialism,
• lapel_flap,
• car_repair,
• wedding,
• electric_shock,
• dog_incident,
• athletic_event,
• traffic_incident,
• noise,
• water-line_break,
• airplane_crash,
• auto_accident,
• wildfire,
• sport_event,
• system_outage,
• thunder,
• corrective_action,
• improper_storage,
• shipping,
• weight_loss,
• location,
• redundancy,
• dna_damage,
• relocation,
• bird_wings,
• sun_burn,
• wound_infection,
• gas_depletion,
• judgement,
• labor_dispute,
• high-profile_scandal,
• spark,
• cold_air,
• emergence,
• air,
• writing,
• feast,
• major_leak,
• tool_failure,
• hobby,
• exposure,
• equipment_malfunction,
• human_heartbeat,
• burn,
• application,
• time,
• arithmetic_overflow,
• cycle,
• bush_fire,
• takeover,
• shoulder_drop,
• immigration,
• baptism,
• incoming_order,
• error,
• blackout,
• award,
• discovery,
• revolutionary_war,
• derailment,
• thromboembolism,
• absence,
• back_injury,
• carnival,
• tool_breakage,
• surgical_operation,
• travel,
• flash,
• walkout,
• excessive_discount,
• penetration,
• astrological_event,
• citation,
• parking_violation,
• unnatural_death,
• breakage,
• breeding,
• sexual_assault,
• uncertain_control,
• dioxin_discovery,
• business,
• actual_sale,
• rest,
• houston_flood,
• roar,
• project_change,
• rockslide,
• wind_shear,
• machine_breakdown,
• change_initiative,
• mistake,
• parking,
• total_war,
• wind_storm,
• arrival,
• disconnection,
• comet_passing,
• treatment,
• attempt,
• witnessing_violence,
• interaction,
• occupational_catastrophe,
• tide,
• parting,
• comfort-woman_issue,
• materialization,
• introduction,
• wildlife_damage,
• crushing_injury,
• land_subsidence,
• fugitive_emission,
• utility_malfunction,
• discrimination,
• major_repair,
• illegal_instruction,
• disk_crash,
• broker_commission,
• damage,
• movement,
• slip,
• rollover,
• police_visit,
• increase,