context: There is a very good chance that Brian is gray. It is likely that Bernhard is a rhino. There is a better than even chance that Lily is white. It is highly likely that if Brian is gray, or Bernhard is a rhino, then Winona is a cat. It is probably the case that if either Lily is white, or Brian is gray, then Julius is a swan. It is probable that if Brian is gray, and Bernhard is a rhino, then John picked up the apple.
hypothesis: It is unlikely that julius is a swan, or Bernhard is a rhino.
valid_hypothesis: There is a very good chance that julius is a swan, or Bernhard is a rhino.
invalid_hypothesis: It is unlikely that julius is a swan, or Bernhard is a rhino.
hypothesis_assertion: Julius is a swan, or Bernhard is a rhino.