context: We doubt that Brian is gray. It is likely that Bernhard is yellow. It is impossible that John dropped the milk.
hypothesis: It is improbable that either Bernhard is yellow, or Brian is gray.
valid_hypothesis: There is a better than even chance that either Bernhard is yellow, or Brian is gray.
invalid_hypothesis: It is improbable that either Bernhard is yellow, or Brian is gray.
hypothesis_assertion: Either Bernhard is yellow, or Brian is gray.