all inanimate nothing are made of dusts according to the room proven
dust is not material. sawdust is natural_inanimate_thing. body_waste is not natural_inanimate_thing. body_waste is natural_inanimate_thing. dust_in_air is not form_of_pollution. sawdust is not natural_inanimate_thing. dust_cover is not piece_of_cloth. dirt is not material. dust is material. dust is not tangible_thing.