context: It is almost certain that Bernhard is a frog. Chances are slight that Sandra grabbed the milk. We believe that Lily is gray. We doubt that if Sandra grabbed the milk, or Lily is gray, then Daniel is in the office. It is unlikely that if Sandra grabbed the milk, and Bernhard is a frog, then John went to the bedroom. There is a very good chance that if either Bernhard is a frog, or Sandra grabbed the milk, then Brian is green.
hypothesis: There is a very good chance that either Sandra grabbed the milk, or Brian is green.
valid_hypothesis: There is a very good chance that either Sandra grabbed the milk, or Brian is green.
invalid_hypothesis: We doubt that either Sandra grabbed the milk, or Brian is green.
hypothesis_assertion: Either Sandra grabbed the milk, or Brian is green.