context: It is highly unlikely that Jessica is a sheep. There is a very good chance that John went to the bedroom. It is likely that Bernhard is white. Chances are about even that if either John went to the bedroom, or Bernhard is white, then Emily is a wolf. There is a very good chance that if John went to the bedroom, and Bernhard is white, then Sandra grabbed the milk. There is a better than even chance that if either John went to the bedroom, or Bernhard is white, then Greg is gray.
hypothesis: It is probable that either Bernhard is white, or Jessica is a sheep.
valid_hypothesis: It is probable that either Bernhard is white, or Jessica is a sheep.
invalid_hypothesis: It is impossible that either Bernhard is white, or Jessica is a sheep.
hypothesis_assertion: Either Bernhard is white, or Jessica is a sheep.