context: We doubt that Lily is a frog. There is little chance that Bill went to the kitchen. There is a better than even chance that John got the apple. We believe that if either Lily is a frog, or Bill went to the kitchen, then Daniel dropped the milk. We believe that if Lily is a frog, and Bill went to the kitchen, then Bernhard is white. We doubt that if John got the apple, or Lily is a frog, then Brian is a rhino.
hypothesis: Chances are slight that john got the apple, and Lily is a frog.
valid_hypothesis: Chances are slight that john got the apple, and Lily is a frog.
invalid_hypothesis: It is almost certain that john got the apple, and Lily is a frog.
hypothesis_assertion: John got the apple, and Lily is a frog.