Simple categories matching unfamiliar:

• part,
• fruit,
• device,
• object,
• system,
• equipment,
• food,
• territory,
• location,
• situation,
• person,
• item,
• aroma,
• place,
• host,
• challenge,

Members with property unfamiliar:

• white_sapote,
• animal,
• nettle_soup,
• peacock_screen,
• trap,
• papaya,
• client_office,
• backpack,
• vase,
• apricot,
• rice_wine,
• rope,
• tofu,
• nonfat_milk,
• nuclear_reactor,
• computer,
• stethoscope,
• kumquat,
• pasta,
• fool,
• internal_conflict,
• bizarre_aroma,
• school,
• tool,
• mango,
• rock_carving,
• brush,
• worry,
• vegetable,
• park,
• sound,
• new_neighborhood,
• umbrella,
• dried_egg,
• computer_keyboard,
• hibiscus_leaf,
• ball,
• spring,
• peanuts,
• cemetery,
• breadfruit,
• human,
• crone,
• wok,
• rod,
• restaurant_setting,
• mountainous_terrain,
• sushi,
• pomegranate,
• date,
• child,
• moving_toy,
• surfboard,
• fig,
• branch,
• group_home,
• lute,
• braille_page,
• plumber,
• persimmon,
• jackfruit,
• coconut,
• drumstick_leaf,
• bag,
• cherimoya,
• new_school,
• crutch,
• new_city,
• yogurt,
• box,
• forklift,
• human_patient,
• water,
• unfamiliar_car,
• mung-bean_cake,
• kiwi,
• lever,
• wild_fern,
• buffalo_milk,
• marriage,
• milk,
• octopus,
• wheelchair,
• phytoplankton_culture,
• satellite,
• pc,
• apple,
• native-american_basket,
• mayonnaise,
• buddhist_statue,
• town,
• call_bell,
• public_place,
• crate,
• robot,
• broccoli,
• violet,
• foreign_country,
• hamburger,
• trash,
• briefcase,
• gray,
• fried_grasshopper,
• package,
• group,
• last_night,
• desert,
• new_town,
• mangosteen,
• medical_equipment,
• chicken,
• historical_district,
• toy,
• ram_egg,
• broken_radio,
• switch,
• mode,
• customer_site,
• milo,
• wonton_maker,
• grapevine,
• bus,
• gray_water,
• puritan_gravestone,
• tenement_block,
• rice,
• spinach_quiche,
• generator,
• new_job,
• hotel,
• office,
• pellet_food,
• artichoke,
• family_instability,
• relations,
• conflict,
• spam,
• apple_peeler,
• crawfish,
• lease_terms,
• motor,
• internet,