context: There is a very good chance that John put down the apple. There is a very good chance that Brian is a swan. There is almost no chance that Bernhard is gray. It is probably not the case that if Brian is a swan, and John put down the apple, then Lily is white. It is probable that if either Brian is a swan, or Bernhard is gray, then Greg is a rhino. Chances are slight that if either John put down the apple, or Bernhard is gray, then Mary moved to the office.
hypothesis: It is impossible that lily is white, or Greg is a rhino.
valid_hypothesis: There is a better than even chance that lily is white, or Greg is a rhino.
invalid_hypothesis: It is impossible that lily is white, or Greg is a rhino.
hypothesis_assertion: Lily is white, or Greg is a rhino.