context: Chances are about even that Brian is green. It is probably the case that Bernhard is a swan. It is almost certain that Greg is gray.
hypothesis: It is probably not the case that brian is green, and Bernhard is a swan.
valid_hypothesis: It is probably not the case that brian is green, and Bernhard is a swan.
invalid_hypothesis: There is a very good chance that brian is green, and Bernhard is a swan.
hypothesis_assertion: Brian is green, and Bernhard is a swan.