context: It is highly unlikely that Julius is yellow. It is probable that Brian is a swan. It is almost certain that Lily is a swan.
hypothesis: It is highly unlikely that brian is a swan, and Julius is yellow.
valid_hypothesis: It is highly unlikely that brian is a swan, and Julius is yellow.
invalid_hypothesis: It is probable that brian is a swan, and Julius is yellow.
hypothesis_assertion: Brian is a swan, and Julius is yellow.