context: We believe that Brian is gray. It is certain that Greg is a swan. There is little chance that Lily is a rhino.
hypothesis: Chances are slight that brian is gray, and Lily is a rhino.
valid_hypothesis: Chances are slight that brian is gray, and Lily is a rhino.
invalid_hypothesis: There is a better than even chance that brian is gray, and Lily is a rhino.
hypothesis_assertion: Brian is gray, and Lily is a rhino.