context: There is a better than even chance that Brian is a lion. There is a very good chance that Lily is a frog. There is a very good chance that Greg is yellow. There is a better than even chance that if Lily is a frog, or Greg is yellow, then Mary went to the bedroom. It is improbable that if Brian is a lion, or Greg is yellow, then Bernhard is a swan. Chances are slight that if Brian is a lion, and Greg is yellow, then Sandra left the milk.
hypothesis: It is highly unlikely that sandra left the milk, and Lily is a frog.
valid_hypothesis: It is highly unlikely that sandra left the milk, and Lily is a frog.
invalid_hypothesis: It is highly likely that sandra left the milk, and Lily is a frog.
hypothesis_assertion: Sandra left the milk, and Lily is a frog.