context: It is likely that Daniel took the apple. There is a better than even chance that Bernhard is a swan. It is improbable that Greg is green.
hypothesis: It is impossible that bernhard is a swan, and Daniel took the apple.
valid_hypothesis: Chances are about even that bernhard is a swan, and Daniel took the apple.
invalid_hypothesis: It is impossible that bernhard is a swan, and Daniel took the apple.
hypothesis_assertion: Bernhard is a swan, and Daniel took the apple.