context: There is a very good chance that John dropped the apple. It is highly likely that Winona is a cat. Chances are slight that Daniel grabbed the milk.
hypothesis: It is probable that either Winona is a cat, or John dropped the apple.
valid_hypothesis: It is probably not the case that either Winona is a cat, or John dropped the apple.
invalid_hypothesis: It is probable that either Winona is a cat, or John dropped the apple.
hypothesis_assertion: Either Winona is a cat, or John dropped the apple.