context: It is almost certain that Bernhard is gray. It is impossible that Brian is a rhino. It is highly likely that John went to the bedroom.
hypothesis: It is impossible that john went to the bedroom, and Brian is a rhino.
valid_hypothesis: It is impossible that john went to the bedroom, and Brian is a rhino.
invalid_hypothesis: There is a better than even chance that john went to the bedroom, and Brian is a rhino.
hypothesis_assertion: John went to the bedroom, and Brian is a rhino.