context: We believe that Lily is a swan. It is impossible that Bernhard is a frog. There is a better than even chance that Mary picked up the milk. It is impossible that if Lily is a swan, and Bernhard is a frog, then Brian is green. It is probably not the case that if Lily is a swan, and Mary picked up the milk, then Antoine is thirsty. It is probably the case that if either Lily is a swan, or Mary picked up the milk, then Greg is white.
hypothesis: Chances are about even that either Lily is a swan, or Mary picked up the milk.
valid_hypothesis: Chances are about even that either Lily is a swan, or Mary picked up the milk.
invalid_hypothesis: There is almost no chance that either Lily is a swan, or Mary picked up the milk.
hypothesis_assertion: Either Lily is a swan, or Mary picked up the milk.