if something is made of something else then that something can be broken down into that something else
another_way_to_say_separates_things is divides_objects. thing is substance. separated_thing is divided_thing. else is river. change is when_one_thing_becomes_another_thing. goods is tangible_thing. man_made is unnatural_thing. thing is artifact. stealing is unnatural_thing. raw_materials is tangible_thing.