context: It is probably the case that Mary left the milk. It is highly likely that Greg is a swan. It is unlikely that Bernhard is a rhino. There is a very good chance that if either Greg is a swan, or Mary left the milk, then Lily is gray. It is probably not the case that if Bernhard is a rhino, or Mary left the milk, then John picked up the apple. We believe that if Mary left the milk, or Bernhard is a rhino, then Jessica is a cat.
hypothesis: It is almost certain that either Bernhard is a rhino, or Jessica is a cat.
valid_hypothesis: Chances are about even that either Bernhard is a rhino, or Jessica is a cat.
invalid_hypothesis: It is almost certain that either Bernhard is a rhino, or Jessica is a cat.
hypothesis_assertion: Either Bernhard is a rhino, or Jessica is a cat.