sentences: if something waxing something else then that something is the sink of that something else
docs: dust is tangible_thing. surface_casing is tangible_thing. waxed_cardboard_box is casing. pawn is tangible_thing. waxed_paper is artifact. mirrorlike is tangible_thing. air_ejector is tangible_thing. waxed_cardboard_box is box. cake is tangible_thing. sink is tangible_thing.