context: It is highly likely that Bill left the milk. It is probably the case that John went to the bedroom. We believe that Brian is a swan.
hypothesis: There is a better than even chance that john went to the bedroom, and Bill left the milk.
valid_hypothesis: There is a better than even chance that john went to the bedroom, and Bill left the milk.
invalid_hypothesis: It is impossible that john went to the bedroom, and Bill left the milk.
hypothesis_assertion: John went to the bedroom, and Bill left the milk.