context: It is highly likely that Greg is a lion. We believe that John went to the bedroom. We believe that Brian is a swan.
hypothesis: It is almost certain that brian is a swan, or John went to the bedroom.
valid_hypothesis: It is almost certain that brian is a swan, or John went to the bedroom.
invalid_hypothesis: It is probably not the case that brian is a swan, or John went to the bedroom.
hypothesis_assertion: Brian is a swan, or John went to the bedroom.