context: It is improbable that Bill went to the bedroom. It is probably the case that Julius is a swan. It is likely that Greg is yellow. There is a better than even chance that if either Bill went to the bedroom, or Julius is a swan, then Brian is green. We believe that if either Bill went to the bedroom, or Julius is a swan, then Bernhard is a frog. It is unlikely that if Julius is a swan, and Greg is yellow, then Sandra left the apple.
hypothesis: There is almost no chance that brian is green, and Bill went to the bedroom.
valid_hypothesis: There is almost no chance that brian is green, and Bill went to the bedroom.
invalid_hypothesis: It is probable that brian is green, and Bill went to the bedroom.
hypothesis_assertion: Brian is green, and Bill went to the bedroom.