context: It is likely that Gertrude is a wolf. We believe that Sandra left the apple. Chances are slight that Mary got the milk.
hypothesis: It is almost certain that either Gertrude is a wolf, or Sandra left the apple.
valid_hypothesis: Chances are about even that either Gertrude is a wolf, or Sandra left the apple.
invalid_hypothesis: It is almost certain that either Gertrude is a wolf, or Sandra left the apple.
hypothesis_assertion: Either Gertrude is a wolf, or Sandra left the apple.