Simple categories matching innocuous:

• machine,
• drug,
• substance,
• papers,
• item,
• compound,
• object,
• document,
• medication,
• material,
• procedure,
• diluent,
• device,
• atmosphere,
• agent,
• trauma,
• creature,
• implement,
• form,
• thing,
• powder,
• gas,
• behavior,
• metal,
• waste,
• article,
• carrier,
• liquid,
• entity,
• antigen,
• component,
• ingredient,
• particle,
• location,
• fluid,
• event,
• substrate,
• appliance,
• molecule,
• part,
• stimulus,
• smell,
• organism,
• matter,
• product,
• solid,

Members with property innocuous:

• cell_phone,
• oxygen,
• water,
• sugar_pill,
• book,
• alcohol,
• tv,
• wok,
• pasta_machine,
• teeth_cleaning,
• dust,
• air,
• textile,
• helium,
• girl-scout_cookie,
• flour,
• corporate_sponsorship,
• lighted_cigarette,
• nitrogen,
• pen,
• sugar,
• pollen,
• pistol_belt,
• clicking_button,
• cartoon,
• towel,
• oil,
• key,
• inorganic_salt,
• carrot,
• iv_pole,
• deer,
• commercial,
• saline_injection,
• tylenol,
• advertising_cookie,
• cinnamon,
• ethylene,
• inorganic_ash,
• cesium,
• starch,
• fatty_acid,
• muhammad_cartoon,
• trivial_difficulty,
• tyre_lever,
• dust_particle,
• vitamin_injection,
• chloride,
• hammer,
• star_picket,
• dizziness,
• eyeglasses,
• methane,
• utility,
• insect,
• foldout_cot,
• pill,
• toaster,
• metal,
• cucumber,
• smoke_particle,
• old-fashioned_toaster,
• felt-tip_marker,
• telephone_cable,
• pigeon,
• button,
• biomass,
• cornstarch,
• metabolic_intermediate,
• plant,
• acetylene,
• jewelry,
• argon,
• glutamine,
• canteen,
• use,
• sandbag,
• typewriter,
• lapel_pin,
• telephone_list,
• acetone,
• purse,
• door,
• stick,
• fall,
• dvd,
• street_vendor,
• bad_breath,
• prosthesis,
• animal_protein,
• chest,
• letters,
• ethane,
• salt,
• water_h2o,
• staphylococcus,
• plant_pot,
• polysaccharide,
• glasses,
• carbon-dioxide_co,
• viral_exanthem,
• h2o,
• beverage,
• battery,
• cereal,
• angelica,
• potato-chip_bag,
• calculator,
• jello,
• wine,
• racist_book,
• mattress,
• strut,
• plane,
• flower_shop,
• medication,
• coffee,
• corn,
• old_file,
• natural_uranium,
• calamari,
• shirt,
• nursery_frieze,
• powdered_milk,
• plaster_dust,
• limb_movement,
• prescription_medication,
• cast,
• automobile,
• latex,
• aniseed,
• venetian-blind_cords,
• magazine,
• food_antigen,
• liquid,
• peanut_protein,
• food,
• skin_ointment,
• electrical_item,
• cigarette,
• custard_powder,
• dvd_player,
• roadside_debris,
• telephone,
• skin_contusion,
• medical_equipment,
• co,
• phosphorous_trichloride,
• car,
• bucket,
• pen_tray,
• parmesan_cheese,
• beam,
• music,
• profit,
• paint,
• neurotransmitter,
• skin,
• sweet,
• inert_gas,
• dice,
• pad,
• splint,
• mouse,
• palpitation,
• fraternity_bash,
• citrus_oil,
• bathing,
• exhibition,
• tweezer,
• pen_lid,
• urchin,
• powerful_stereo,
• krypton,
• amine,
• sucrose,
• mechanical_stimulus,
• insect_venom,
• plate,
• halogen_salt,
• flour_mixture,
• flower,
• sugar_tablet,
• paper,
• family_togetherness,
• cleaning_product,
• exercising_breathlessness,
• recording_video,
• rolling_briefcase,
• chocolate,
• nitrocellulose,
• toothpaste_tube,
• orange,
• grocery_goods,
• bent_banana,
• plant_pollen,
• carbon,
• tetracycline,
• vase,
• caffeine,
• nail_clipper,
• softener,
• boat,
• oh_gee,
• serotonin,
• sewing_scissors,
• process_change,
• drug,
• mannitol,
• bond,
• vitamin,
• gel,
• smell,
• parade,
• air_sample,
• spider,
• glycerol,
• watch,
• computer_breakdown,
• moving_mouse,
• toothpaste,
• hyssop,
• restaurant,
• aspirin,
• bird,
• bolt,
• wax,
• sound,
• teapot,
• recorder,
• cell,
• school_trip,
• flower_pollen,
• comb,
• co2,
• gold_jewelry,
• peanuts,
• nut,
• carbon-dioxide_co2,
• everyday_garbage,
• photograph,
• birthing_ball,
• electric_shaver,
• uniform,
• wheat,
• underarm_deodorant,
• toothbrush,
• winning_lottery,
• exercising,
• lipstick_case,
• pocket,
• helmet,
• straight_pin,
• ethene,
• glue,
• sun_block,
• flashlight,
• tin,
• medication_application,
• butterfly,
• carbon_oxide,
• glucose,
• credit-card_bill,
• wrap,
• melamine,
• pyjama,
• iced-tea_bottle,
• certain_food,
• cows_milk,
• water_purification,
• plastic_cup,
• product,
• spoon,
• table,
• certain_foodstuff,
• mold,
• tomato,
• toy_car,
• leaf,
• shampoo,
• nickel,
• calcium,
• swinging_purse,
• wood,
• cd,
• fennel,
• celebrity_gossip,
• passing_insect,
• rabbit,
• graphite,
• brandy_butter,
• household_goods,
• cooking_smell,
• drug_eruption,
• inorganic_chloride,
• saltwater,
• milk,
• escalator,
• shoes,
• mouthwash_bottle,
• pet,
• clothing,
• urea,
• fingerprint,
• office_file,
• garden_waste,
• lactose,
• microfiche_machine,
• iron,
• traffic_cone,
• confidence,
• airborne_antigen,
• place,
• sneeze,