context: It is almost certain that Jason is bored. It is likely that Winona is a cat. Chances are slight that John picked up the apple. It is probably the case that if John picked up the apple, and Winona is a cat, then Bernhard is a rhino. There is a very good chance that if John picked up the apple, or Jason is bored, then Brian is yellow. Chances are slight that if John picked up the apple, or Winona is a cat, then Mary got the milk.
hypothesis: It is improbable that bernhard is a rhino, or Mary got the milk.
valid_hypothesis: It is improbable that bernhard is a rhino, or Mary got the milk.
invalid_hypothesis: It is probably the case that bernhard is a rhino, or Mary got the milk.
hypothesis_assertion: Bernhard is a rhino, or Mary got the milk.