context: We doubt that Bernhard is yellow. It is unlikely that Julius is a rhino. There is little chance that Fred is in the bedroom. There is little chance that if Bernhard is yellow, and Fred is in the bedroom, then Lily is a lion. We believe that if Fred is in the bedroom, and Julius is a rhino, then Bill went to the hallway. There is a very good chance that if either Fred is in the bedroom, or Julius is a rhino, then John picked up the apple.
hypothesis: It is probably not the case that either Julius is a rhino, or Fred is in the bedroom.
valid_hypothesis: It is probably not the case that either Julius is a rhino, or Fred is in the bedroom.
invalid_hypothesis: It is certain that either Julius is a rhino, or Fred is in the bedroom.
hypothesis_assertion: Either Julius is a rhino, or Fred is in the bedroom.