context: It is almost certain that Lily is gray. It is impossible that Brian is a lion. It is probable that John went to the hallway. We doubt that if Lily is gray, and John went to the hallway, then Bernhard is a swan. It is almost certain that if either Brian is a lion, or John went to the hallway, then Greg is yellow. There is a very good chance that if Brian is a lion, and Lily is gray, then Mary is in the school.
hypothesis: We believe that lily is gray, and Bernhard is a swan.
valid_hypothesis: It is improbable that lily is gray, and Bernhard is a swan.
invalid_hypothesis: We believe that lily is gray, and Bernhard is a swan.
hypothesis_assertion: Lily is gray, and Bernhard is a swan.