context: It is likely that Julius is yellow. There is a better than even chance that Mary moved to the garden. It is improbable that Lily is gray. It is improbable that if Lily is gray, and Julius is yellow, then Sandra grabbed the milk. It is certain that if either Lily is gray, or Julius is yellow, then Brian is gray. We believe that if Lily is gray, or Mary moved to the garden, then Bernhard is a swan.
hypothesis: It is impossible that sandra grabbed the milk, and Brian is gray.
valid_hypothesis: It is impossible that sandra grabbed the milk, and Brian is gray.
invalid_hypothesis: There is a better than even chance that sandra grabbed the milk, and Brian is gray.
hypothesis_assertion: Sandra grabbed the milk, and Brian is gray.