context: It is unlikely that Lily is a swan. It is highly likely that John went to the hallway. We believe that Julius is yellow.
hypothesis: It is certain that john went to the hallway, and Lily is a swan.
valid_hypothesis: It is unlikely that john went to the hallway, and Lily is a swan.
invalid_hypothesis: It is certain that john went to the hallway, and Lily is a swan.
hypothesis_assertion: John went to the hallway, and Lily is a swan.