context: It is certain that Julius is a lion. It is likely that Lily is gray. We doubt that Jeff went to the garden.
hypothesis: It is impossible that lily is gray, or Julius is a lion.
valid_hypothesis: It is certain that lily is gray, or Julius is a lion.
invalid_hypothesis: It is impossible that lily is gray, or Julius is a lion.
hypothesis_assertion: Lily is gray, or Julius is a lion.