context: It is likely that Bernhard is white. We believe that Sandra got the milk. Chances are slight that Brian is gray. It is highly likely that if either Bernhard is white, or Brian is gray, then Greg is a frog. It is impossible that if Bernhard is white, or Brian is gray, then Mary is in the bedroom. Chances are slight that if Bernhard is white, and Brian is gray, then Julius is a rhino.
hypothesis: It is likely that bernhard is white, and Brian is gray.
valid_hypothesis: It is highly unlikely that bernhard is white, and Brian is gray.
invalid_hypothesis: It is likely that bernhard is white, and Brian is gray.
hypothesis_assertion: Bernhard is white, and Brian is gray.