context: It is improbable that Mary took the apple. It is unlikely that Brian is a frog. We believe that Bernhard is white. There is a better than even chance that if either Bernhard is white, or Mary took the apple, then Daniel is in the garden. We believe that if Brian is a frog, or Bernhard is white, then Greg is a lion. It is unlikely that if either Mary took the apple, or Brian is a frog, then John put down the milk.
hypothesis: It is unlikely that either Bernhard is white, or Brian is a frog.
valid_hypothesis: It is likely that either Bernhard is white, or Brian is a frog.
invalid_hypothesis: It is unlikely that either Bernhard is white, or Brian is a frog.
hypothesis_assertion: Either Bernhard is white, or Brian is a frog.