context: Chances are slight that John went to the office. It is impossible that Emily is a wolf. It is certain that Greg is green. There is a very good chance that if either Greg is green, or Emily is a wolf, then Brian is gray. It is certain that if Emily is a wolf, and Greg is green, then Lily is yellow. There is almost no chance that if Emily is a wolf, or John went to the office, then Mary left the apple.
hypothesis: There is little chance that mary left the apple, or John went to the office.
valid_hypothesis: There is little chance that mary left the apple, or John went to the office.
invalid_hypothesis: There is a better than even chance that mary left the apple, or John went to the office.
hypothesis_assertion: Mary left the apple, or John went to the office.