context: It is highly unlikely that Lily is a rhino. Chances are slight that Brian is gray. It is highly likely that Sandra got the apple.
hypothesis: It is highly unlikely that lily is a rhino, and Sandra got the apple.
valid_hypothesis: It is highly unlikely that lily is a rhino, and Sandra got the apple.
invalid_hypothesis: Chances are about even that lily is a rhino, and Sandra got the apple.
hypothesis_assertion: Lily is a rhino, and Sandra got the apple.