context: We believe that Julie is in the bedroom. It is unlikely that John went to the hallway. It is likely that Lily is green. There is a very good chance that if Julie is in the bedroom, or Lily is green, then Emily is a sheep. It is impossible that if John went to the hallway, and Lily is green, then Brian is a rhino. It is certain that if Lily is green, or John went to the hallway, then Mary got the football.
hypothesis: It is impossible that either Emily is a sheep, or John went to the hallway.
valid_hypothesis: There is a better than even chance that either Emily is a sheep, or John went to the hallway.
invalid_hypothesis: It is impossible that either Emily is a sheep, or John went to the hallway.
hypothesis_assertion: Either Emily is a sheep, or John went to the hallway.