if something is part of another thing, then another thing consist of that something
part is tangible_thing. part is thing. another_way_to_say_separates_things is divides_objects. thing is substance. separated_thing is divided_thing. thing is object. change is when_one_thing_becomes_another_thing. thing is entity. everything is one_thing. part_of_thing is less_than_whole_thing.