context: It is almost certain that Brian is gray. It is improbable that Bernhard is a frog. It is improbable that John went to the bedroom.
hypothesis: It is highly likely that john went to the bedroom, and Brian is gray.
valid_hypothesis: Chances are slight that john went to the bedroom, and Brian is gray.
invalid_hypothesis: It is highly likely that john went to the bedroom, and Brian is gray.
hypothesis_assertion: John went to the bedroom, and Brian is gray.