context: It is impossible that Brian is gray. We believe that Jeff went to the bedroom. We doubt that Julius is a frog.
hypothesis: We doubt that either Julius is a frog, or Brian is gray.
valid_hypothesis: We doubt that either Julius is a frog, or Brian is gray.
invalid_hypothesis: We believe that either Julius is a frog, or Brian is gray.
hypothesis_assertion: Either Julius is a frog, or Brian is gray.