context: It is unlikely that Greg is yellow. It is probable that Brian is a swan. It is probably not the case that John is in the bathroom.
hypothesis: We doubt that john is in the bathroom, and Brian is a swan.
valid_hypothesis: We doubt that john is in the bathroom, and Brian is a swan.
invalid_hypothesis: It is probably the case that john is in the bathroom, and Brian is a swan.
hypothesis_assertion: John is in the bathroom, and Brian is a swan.