context: It is certain that Julius is a lion. It is likely that Bill left the milk. There is a better than even chance that Greg is white.
hypothesis: It is probably not the case that either Bill left the milk, or Julius is a lion.
valid_hypothesis: It is probably not the case that either Bill left the milk, or Julius is a lion.
invalid_hypothesis: It is highly likely that either Bill left the milk, or Julius is a lion.
hypothesis_assertion: Either Bill left the milk, or Julius is a lion.