context: There is a very good chance that Julius is white. It is probable that Lily is a rhino. We believe that John picked up the milk. It is certain that if John picked up the milk, or Lily is a rhino, then Yann is tired. It is probably the case that if Lily is a rhino, or Julius is white, then Brian is a swan. It is almost certain that if Julius is white, or John picked up the milk, then Bernhard is gray.
hypothesis: It is certain that lily is a rhino, and Brian is a swan.
valid_hypothesis: Chances are about even that lily is a rhino, and Brian is a swan.
invalid_hypothesis: It is certain that lily is a rhino, and Brian is a swan.
hypothesis_assertion: Lily is a rhino, and Brian is a swan.