context: It is highly likely that Greg is a swan. It is probably not the case that Brian is a rhino. There is a very good chance that Mary is in the bedroom. It is almost certain that if either Greg is a swan, or Mary is in the bedroom, then Fred went to the hallway. We believe that if Mary is in the bedroom, or Brian is a rhino, then Lily is a lion. There is a better than even chance that if Brian is a rhino, or Greg is a swan, then Gertrude is a mouse.
hypothesis: It is highly likely that gertrude is a mouse, and Fred went to the hallway.
valid_hypothesis: It is improbable that gertrude is a mouse, and Fred went to the hallway.
invalid_hypothesis: It is highly likely that gertrude is a mouse, and Fred went to the hallway.
hypothesis_assertion: Gertrude is a mouse, and Fred went to the hallway.