context: There is a better than even chance that Bernhard is a rhino. It is probably not the case that Mary went to the bedroom. It is highly unlikely that Brian is gray.
hypothesis: Chances are about even that mary went to the bedroom, and Brian is gray.
valid_hypothesis: There is almost no chance that mary went to the bedroom, and Brian is gray.
invalid_hypothesis: Chances are about even that mary went to the bedroom, and Brian is gray.
hypothesis_assertion: Mary went to the bedroom, and Brian is gray.