context: It is highly unlikely that Winona is a wolf. It is certain that Bill moved to the garden. It is unlikely that Julius is a swan. It is probable that if Winona is a wolf, or Julius is a swan, then John went to the bedroom. It is unlikely that if Winona is a wolf, or Julius is a swan, then Greg is a lion. It is unlikely that if either Bill moved to the garden, or Julius is a swan, then Mary got the milk.
hypothesis: It is impossible that mary got the milk, and Julius is a swan.
valid_hypothesis: It is impossible that mary got the milk, and Julius is a swan.
invalid_hypothesis: There is a better than even chance that mary got the milk, and Julius is a swan.
hypothesis_assertion: Mary got the milk, and Julius is a swan.