context: It is certain that Mary took the milk. It is probably the case that John went to the hallway. It is unlikely that Greg is green. There is a very good chance that if either Greg is green, or Mary took the milk, then Lily is white. There is little chance that if John went to the hallway, and Mary took the milk, then Bernhard is a swan. It is likely that if John went to the hallway, and Greg is green, then Julius is a rhino.
hypothesis: It is highly unlikely that john went to the hallway, and Bernhard is a swan.
valid_hypothesis: It is highly unlikely that john went to the hallway, and Bernhard is a swan.
invalid_hypothesis: It is highly likely that john went to the hallway, and Bernhard is a swan.
hypothesis_assertion: John went to the hallway, and Bernhard is a swan.