context: It is highly unlikely that Julius is green. It is probably not the case that Brian is a swan. It is highly unlikely that John grabbed the milk. There is little chance that if Julius is green, or Brian is a swan, then Fred went to the hallway. We believe that if either John grabbed the milk, or Julius is green, then Lily is a lion. There is almost no chance that if either Julius is green, or Brian is a swan, then Mary moved to the office.
hypothesis: There is a very good chance that lily is a lion, and Fred went to the hallway.
valid_hypothesis: It is impossible that lily is a lion, and Fred went to the hallway.
invalid_hypothesis: There is a very good chance that lily is a lion, and Fred went to the hallway.
hypothesis_assertion: Lily is a lion, and Fred went to the hallway.