context: We doubt that Bernhard is a frog. There is little chance that Brian is gray. We believe that Greg is a rhino.
hypothesis: It is improbable that brian is gray, and Greg is a rhino.
valid_hypothesis: It is improbable that brian is gray, and Greg is a rhino.
invalid_hypothesis: It is highly likely that brian is gray, and Greg is a rhino.
hypothesis_assertion: Brian is gray, and Greg is a rhino.