context: It is probable that Brian is green. It is highly likely that John went to the bedroom. There is a very good chance that Greg is a rhino. It is certain that if either Greg is a rhino, or John went to the bedroom, then Bernhard is a lion. We doubt that if John went to the bedroom, or Greg is a rhino, then Lily is a swan. Chances are about even that if either John went to the bedroom, or Greg is a rhino, then Mary is in the school.
hypothesis: Chances are slight that greg is a rhino, and John went to the bedroom.
valid_hypothesis: It is probable that greg is a rhino, and John went to the bedroom.
invalid_hypothesis: Chances are slight that greg is a rhino, and John went to the bedroom.
hypothesis_assertion: Greg is a rhino, and John went to the bedroom.