context: Chances are about even that Brian is green. It is improbable that Mary put down the milk. We doubt that Lily is a lion. It is probable that if either Lily is a lion, or Brian is green, then John went to the bedroom. It is probable that if Brian is green, and Mary put down the milk, then Bernhard is a frog. There is a very good chance that if either Brian is green, or Lily is a lion, then Daniel took the football.
hypothesis: We believe that lily is a lion, and John went to the bedroom.
valid_hypothesis: It is highly unlikely that lily is a lion, and John went to the bedroom.
invalid_hypothesis: We believe that lily is a lion, and John went to the bedroom.
hypothesis_assertion: Lily is a lion, and John went to the bedroom.