context: It is probably not the case that Bernhard is white. It is unlikely that Brian is a swan. Chances are about even that Sandra got the apple.
hypothesis: Chances are about even that either Bernhard is white, or Sandra got the apple.
valid_hypothesis: Chances are about even that either Bernhard is white, or Sandra got the apple.
invalid_hypothesis: It is certain that either Bernhard is white, or Sandra got the apple.
hypothesis_assertion: Either Bernhard is white, or Sandra got the apple.