context: Chances are slight that Brian is gray. It is probable that Julius is a rhino. It is certain that Lily is a rhino.
hypothesis: It is likely that lily is a rhino, and Brian is gray.
valid_hypothesis: It is improbable that lily is a rhino, and Brian is gray.
invalid_hypothesis: It is likely that lily is a rhino, and Brian is gray.
hypothesis_assertion: Lily is a rhino, and Brian is gray.