context: Chances are about even that Brian is yellow. There is a better than even chance that Daniel put down the milk. It is highly likely that Julius is a swan. It is unlikely that if either Brian is yellow, or Julius is a swan, then Mary moved to the office. We doubt that if either Daniel put down the milk, or Julius is a swan, then Bernhard is gray. It is probable that if Brian is yellow, or Julius is a swan, then Greg is a lion.
hypothesis: There is a better than even chance that either Brian is yellow, or Mary moved to the office.
valid_hypothesis: There is a better than even chance that either Brian is yellow, or Mary moved to the office.
invalid_hypothesis: It is highly unlikely that either Brian is yellow, or Mary moved to the office.
hypothesis_assertion: Either Brian is yellow, or Mary moved to the office.