context: There is little chance that Jason is bored. It is impossible that John went to the kitchen. We doubt that Sandra left the apple.
hypothesis: It is impossible that john went to the kitchen, and Sandra left the apple.
valid_hypothesis: It is impossible that john went to the kitchen, and Sandra left the apple.
invalid_hypothesis: It is certain that john went to the kitchen, and Sandra left the apple.
hypothesis_assertion: John went to the kitchen, and Sandra left the apple.