if somthing is sticky then other things will become stuck to it
irritating_odor is tangible_thing. rust_causing_stuff is tangible_thing. if stuff does not occur then tan occurs. burnt_thing is tangible_thing. if stuff occurs then tan occurs. irritating_odor is not tangible_thing. rust_causing_stuff is not tangible_thing. tickling is not sensory_event. nestle_crunch is not tangible_thing. burnt_thing is not tangible_thing.