all inanimate nothing are made of mountain according to the room proven
rock is not inanimate_object. field_of_boulders is not natural_inanimate_thing. group_of_mountains is not naturally_occurring_tangible_substance. rock is inanimate_object. snow is not natural_inanimate_thing. rocks is inanimate_mineral_objects. fossil is not natural_inanimate_thing. rocks is not inanimate_mineral_objects. group_of_mountains is not group_of_inanimate_objects. sea is not natural_inanimate_thing.