if something door something else then that something has a uncertain wall on that something else
interior_door is tangible_thing. peace_wall is tangible_thing. sometimes_door is not ajar. open_door is not door. interior_door is not tangible_thing. another_way_to_say_separates_things is not divides_objects. another_way_to_say_separates_things is divides_objects. peace_wall is not tangible_thing. directions_to_get_somewhere is not how_to_thing. being_somewhere is not situation.