context: It is impossible that Mary got the milk. Chances are slight that John went to the hallway. It is probably not the case that Jessica is a wolf. It is probably not the case that if John went to the hallway, and Mary got the milk, then Sandra left the milk. It is probable that if Jessica is a wolf, or Mary got the milk, then Gertrude is a mouse. It is unlikely that if Jessica is a wolf, and John went to the hallway, then Brian is a lion.
hypothesis: It is likely that mary got the milk, or John went to the hallway.
valid_hypothesis: There is little chance that mary got the milk, or John went to the hallway.
invalid_hypothesis: It is likely that mary got the milk, or John went to the hallway.
hypothesis_assertion: Mary got the milk, or John went to the hallway.