context: It is highly unlikely that Brian is white. There is almost no chance that Bernhard is white. It is highly unlikely that Julius is a frog. It is certain that if Julius is a frog, and Bernhard is white, then Greg is gray. It is probably not the case that if Bernhard is white, or Julius is a frog, then John got the milk. We believe that if Brian is white, and Bernhard is white, then Mary went to the office.
hypothesis: It is likely that brian is white, and Bernhard is white.
valid_hypothesis: It is impossible that brian is white, and Bernhard is white.
invalid_hypothesis: It is likely that brian is white, and Bernhard is white.
hypothesis_assertion: Brian is white, and Bernhard is white.