context: There is a better than even chance that Jessica is a wolf. It is probably the case that Mary is in the bedroom. It is highly unlikely that Jason is bored. It is probable that if Mary is in the bedroom, or Jessica is a wolf, then Bernhard is gray. It is highly likely that if either Jessica is a wolf, or Mary is in the bedroom, then Brian is white. Chances are slight that if Mary is in the bedroom, and Jessica is a wolf, then Greg is a lion.
hypothesis: It is certain that brian is white, and Bernhard is gray.
valid_hypothesis: It is probably not the case that brian is white, and Bernhard is gray.
invalid_hypothesis: It is certain that brian is white, and Bernhard is gray.
hypothesis_assertion: Brian is white, and Bernhard is gray.