if something is returned to a thing then that something is added to that thing
returning is giving. removable_thing is device. backlit_thing is tangible_thing. burnt_thing is tangible_thing. change is when_one_thing_becomes_another_thing. recovered_thing is not living_thing. backlit_thing is not tangible_thing. recovered_thing is living_thing. change is not when_one_thing_becomes_another_thing. thing is substance.