context: It is highly likely that Julius is a lion. Chances are slight that Greg is gray. It is likely that Brian is green.
hypothesis: There is a very good chance that either Greg is gray, or Julius is a lion.
valid_hypothesis: There is a very good chance that either Greg is gray, or Julius is a lion.
invalid_hypothesis: It is improbable that either Greg is gray, or Julius is a lion.
hypothesis_assertion: Either Greg is gray, or Julius is a lion.