context: It is improbable that John left the apple. Chances are about even that Daniel got the milk. It is unlikely that Bernhard is white.
hypothesis: Chances are about even that either Daniel got the milk, or John left the apple.
valid_hypothesis: Chances are about even that either Daniel got the milk, or John left the apple.
invalid_hypothesis: It is certain that either Daniel got the milk, or John left the apple.
hypothesis_assertion: Either Daniel got the milk, or John left the apple.