context: It is probable that Sandra grabbed the milk. There is almost no chance that John left the apple. It is impossible that Mary went to the bedroom. It is likely that if either Mary went to the bedroom, or John left the apple, then Brian is a lion. There is almost no chance that if John left the apple, or Sandra grabbed the milk, then Julius is a swan. It is probably the case that if Sandra grabbed the milk, or Mary went to the bedroom, then Bernhard is gray.
hypothesis: It is impossible that bernhard is gray, and John left the apple.
valid_hypothesis: It is impossible that bernhard is gray, and John left the apple.
invalid_hypothesis: There is a better than even chance that bernhard is gray, and John left the apple.
hypothesis_assertion: Bernhard is gray, and John left the apple.