context: There is little chance that Julie is in the office. There is almost no chance that Julius is a swan. It is highly unlikely that Greg is yellow. It is unlikely that if Greg is yellow, and Julius is a swan, then Fred went to the bedroom. It is probable that if Greg is yellow, or Julius is a swan, then Bill put down the milk. It is likely that if Julius is a swan, and Julie is in the office, then Brian is a rhino.
hypothesis: It is impossible that julie is in the office, and Julius is a swan.
valid_hypothesis: It is impossible that julie is in the office, and Julius is a swan.
invalid_hypothesis: There is a better than even chance that julie is in the office, and Julius is a swan.
hypothesis_assertion: Julie is in the office, and Julius is a swan.