context: It is highly likely that John went to the bedroom. We believe that Mary grabbed the milk. It is highly unlikely that Brian is a rhino. There is a very good chance that if either John went to the bedroom, or Brian is a rhino, then Winona is a cat. It is likely that if Mary grabbed the milk, and John went to the bedroom, then Greg is a lion. It is probable that if either Brian is a rhino, or John went to the bedroom, then Bernhard is yellow.
hypothesis: It is highly unlikely that john went to the bedroom, and Brian is a rhino.
valid_hypothesis: It is highly unlikely that john went to the bedroom, and Brian is a rhino.
invalid_hypothesis: It is probable that john went to the bedroom, and Brian is a rhino.
hypothesis_assertion: John went to the bedroom, and Brian is a rhino.