context: It is certain that Brian is a rhino. It is likely that Lily is gray. It is unlikely that Julius is white.
hypothesis: There is a very good chance that either Julius is white, or Brian is a rhino.
valid_hypothesis: There is a very good chance that either Julius is white, or Brian is a rhino.
invalid_hypothesis: It is probably not the case that either Julius is white, or Brian is a rhino.
hypothesis_assertion: Either Julius is white, or Brian is a rhino.