context: We believe that Brian is a lion. Chances are slight that Mary is in the bedroom. It is unlikely that John discarded the milk. There is a very good chance that if either Brian is a lion, or John discarded the milk, then Lily is a rhino. It is probably the case that if Mary is in the bedroom, and John discarded the milk, then Greg is a swan. It is certain that if either Brian is a lion, or Mary is in the bedroom, then Julius is a frog.
hypothesis: It is almost certain that either Mary is in the bedroom, or Greg is a swan.
valid_hypothesis: There is little chance that either Mary is in the bedroom, or Greg is a swan.
invalid_hypothesis: It is almost certain that either Mary is in the bedroom, or Greg is a swan.
hypothesis_assertion: Either Mary is in the bedroom, or Greg is a swan.