context: There is a better than even chance that Mary dropped the apple. We believe that Bernhard is green. It is almost certain that Daniel got the milk. There is a better than even chance that if Daniel got the milk, or Bernhard is green, then John went to the hallway. It is probably not the case that if Bernhard is green, and Daniel got the milk, then Greg is white. There is little chance that if Bernhard is green, or Mary dropped the apple, then Brian is a swan.
hypothesis: It is certain that brian is a swan, and Mary dropped the apple.
valid_hypothesis: It is highly unlikely that brian is a swan, and Mary dropped the apple.
invalid_hypothesis: It is certain that brian is a swan, and Mary dropped the apple.
hypothesis_assertion: Brian is a swan, and Mary dropped the apple.