context: We doubt that Greg is a rhino. It is impossible that Mary moved to the office. It is unlikely that Bill put down the milk. It is highly likely that if either Bill put down the milk, or Greg is a rhino, then Jessica is a sheep. It is highly unlikely that if either Greg is a rhino, or Mary moved to the office, then Brian is a swan. Chances are slight that if Greg is a rhino, or Bill put down the milk, then John went to the kitchen.
hypothesis: There is a very good chance that mary moved to the office, and Greg is a rhino.
valid_hypothesis: It is impossible that mary moved to the office, and Greg is a rhino.
invalid_hypothesis: There is a very good chance that mary moved to the office, and Greg is a rhino.
hypothesis_assertion: Mary moved to the office, and Greg is a rhino.