sentences: if something has something else then that something might be made of that something else
docs: another_way_to_say_separates_things is divides_objects. thing is substance. separated_thing is divided_thing. else is river. thing is object. change is when_one_thing_becomes_another_thing. goods is tangible_thing. thing is entity. inorganic_substance is tangible_thing. everything is one_thing.