context: It is improbable that Fred dropped the apple. It is impossible that John got the apple. We doubt that Brian is yellow. It is almost certain that if Brian is yellow, or Fred dropped the apple, then Julie is in the kitchen. It is probably not the case that if Fred dropped the apple, or Brian is yellow, then Greg is a lion. There is little chance that if John got the apple, and Fred dropped the apple, then Mary went to the office.
hypothesis: It is impossible that julie is in the kitchen, and Mary went to the office.
valid_hypothesis: It is impossible that julie is in the kitchen, and Mary went to the office.
invalid_hypothesis: It is certain that julie is in the kitchen, and Mary went to the office.
hypothesis_assertion: Julie is in the kitchen, and Mary went to the office.