context: We believe that John dropped the milk. It is improbable that Gertrude is a wolf. It is probable that Brian is green.
hypothesis: There is a better than even chance that gertrude is a wolf, and John dropped the milk.
valid_hypothesis: Chances are slight that gertrude is a wolf, and John dropped the milk.
invalid_hypothesis: There is a better than even chance that gertrude is a wolf, and John dropped the milk.
hypothesis_assertion: Gertrude is a wolf, and John dropped the milk.