context: It is probable that Sandra left the apple. It is certain that Brian is a rhino. We doubt that John got the milk.
hypothesis: We believe that either Sandra left the apple, or Brian is a rhino.
valid_hypothesis: It is probably not the case that either Sandra left the apple, or Brian is a rhino.
invalid_hypothesis: We believe that either Sandra left the apple, or Brian is a rhino.
hypothesis_assertion: Either Sandra left the apple, or Brian is a rhino.