context: It is improbable that Mary moved to the garden. There is a better than even chance that Bernhard is a swan. There is almost no chance that John picked up the apple. Chances are about even that if Bernhard is a swan, and John picked up the apple, then Julius is gray. We doubt that if Mary moved to the garden, or Bernhard is a swan, then Gertrude is a wolf. Chances are slight that if Bernhard is a swan, or Mary moved to the garden, then Greg is a frog.
hypothesis: It is improbable that either Julius is gray, or Mary moved to the garden.
valid_hypothesis: It is improbable that either Julius is gray, or Mary moved to the garden.
invalid_hypothesis: It is certain that either Julius is gray, or Mary moved to the garden.
hypothesis_assertion: Either Julius is gray, or Mary moved to the garden.