context: It is probably not the case that Mary put down the milk. There is a very good chance that Lily is gray. It is impossible that John moved to the office. We doubt that if Lily is gray, or John moved to the office, then Emily is a wolf. It is highly unlikely that if either Lily is gray, or Mary put down the milk, then Bernhard is a lion. It is probable that if either Lily is gray, or John moved to the office, then Brian is gray.
hypothesis: There is a better than even chance that brian is gray, and Bernhard is a lion.
valid_hypothesis: There is almost no chance that brian is gray, and Bernhard is a lion.
invalid_hypothesis: There is a better than even chance that brian is gray, and Bernhard is a lion.
hypothesis_assertion: Brian is gray, and Bernhard is a lion.