context: Chances are about even that Mary put down the milk. It is certain that Brian is a lion. It is highly likely that Fred went to the cinema. There is little chance that if either Mary put down the milk, or Fred went to the cinema, then Sandra took the apple. It is probable that if either Brian is a lion, or Mary put down the milk, then Lily is gray. It is almost certain that if either Fred went to the cinema, or Brian is a lion, then Winona is a cat.
hypothesis: It is certain that winona is a cat, or Brian is a lion.
valid_hypothesis: It is certain that winona is a cat, or Brian is a lion.
invalid_hypothesis: It is highly unlikely that winona is a cat, or Brian is a lion.
hypothesis_assertion: Winona is a cat, or Brian is a lion.