context: There is a very good chance that Jason is bored. It is highly likely that Julius is gray. It is almost certain that Brian is a swan.
hypothesis: It is certain that julius is gray, or Brian is a swan.
valid_hypothesis: It is certain that julius is gray, or Brian is a swan.
invalid_hypothesis: Chances are about even that julius is gray, or Brian is a swan.
hypothesis_assertion: Julius is gray, or Brian is a swan.