a multicellular thawing has more than zero room
zero_family_room_dwelling is single_family_residence. zero_dining_room_dwelling is single_family_residence. greenroom is not room. zero_dining_room_dwelling is not single_family_residence. storage_room is not room. building has no_cells floor is not room. zero_family_room_dwelling is not single_family_residence. smoking_room is not room. breathing_room is not room.