context: It is unlikely that Bernhard is green. There is little chance that Bill went to the bedroom. It is impossible that Gertrude is a wolf. It is probably the case that if Bill went to the bedroom, or Bernhard is green, then Brian is a swan. It is improbable that if Bernhard is green, or Bill went to the bedroom, then Greg is a frog. There is a very good chance that if Bernhard is green, or Bill went to the bedroom, then John discarded the milk.
hypothesis: It is unlikely that either Gertrude is a wolf, or Brian is a swan.
valid_hypothesis: It is unlikely that either Gertrude is a wolf, or Brian is a swan.
invalid_hypothesis: It is likely that either Gertrude is a wolf, or Brian is a swan.
hypothesis_assertion: Either Gertrude is a wolf, or Brian is a swan.