context: There is a better than even chance that Mary went to the kitchen. There is little chance that Greg is yellow. It is almost certain that Brian is a swan.
hypothesis: It is certain that mary went to the kitchen, or Brian is a swan.
valid_hypothesis: It is certain that mary went to the kitchen, or Brian is a swan.
invalid_hypothesis: Chances are about even that mary went to the kitchen, or Brian is a swan.
hypothesis_assertion: Mary went to the kitchen, or Brian is a swan.