context: There is a very good chance that Julius is gray. It is probably not the case that John picked up the milk. It is impossible that Brian is green.
hypothesis: It is unlikely that julius is gray, and John picked up the milk.
valid_hypothesis: It is unlikely that julius is gray, and John picked up the milk.
invalid_hypothesis: It is certain that julius is gray, and John picked up the milk.
hypothesis_assertion: Julius is gray, and John picked up the milk.