context: It is probably the case that Gertrude is a wolf. It is impossible that Bernhard is yellow. It is highly unlikely that Sandra grabbed the milk. There is a very good chance that if Gertrude is a wolf, or Sandra grabbed the milk, then Lily is white. We believe that if either Sandra grabbed the milk, or Gertrude is a wolf, then Mary went to the office. There is little chance that if Sandra grabbed the milk, and Gertrude is a wolf, then Brian is a rhino.
hypothesis: It is likely that either Brian is a rhino, or Gertrude is a wolf.
valid_hypothesis: It is likely that either Brian is a rhino, or Gertrude is a wolf.
invalid_hypothesis: It is improbable that either Brian is a rhino, or Gertrude is a wolf.
hypothesis_assertion: Either Brian is a rhino, or Gertrude is a wolf.