context: It is certain that Greg is a rhino. There is a better than even chance that Mary moved to the office. It is probable that Julius is a frog.
hypothesis: There is a better than even chance that mary moved to the office, and Greg is a rhino.
valid_hypothesis: There is a better than even chance that mary moved to the office, and Greg is a rhino.
invalid_hypothesis: There is little chance that mary moved to the office, and Greg is a rhino.
hypothesis_assertion: Mary moved to the office, and Greg is a rhino.