context: We doubt that Brian is a swan. It is unlikely that Lily is a rhino. It is likely that Greg is a frog.
hypothesis: It is almost certain that brian is a swan, and Lily is a rhino.
valid_hypothesis: It is highly unlikely that brian is a swan, and Lily is a rhino.
invalid_hypothesis: It is almost certain that brian is a swan, and Lily is a rhino.
hypothesis_assertion: Brian is a swan, and Lily is a rhino.