context: We doubt that Jessica is a mouse. Chances are about even that Fred moved to the office. It is unlikely that Greg is yellow. There is little chance that if Greg is yellow, and Jessica is a mouse, then Daniel took the football. There is a better than even chance that if either Fred moved to the office, or Greg is yellow, then Brian is a frog. Chances are about even that if either Greg is yellow, or Jessica is a mouse, then Mary put down the apple.
hypothesis: There is almost no chance that mary put down the apple, or Fred moved to the office.
valid_hypothesis: There is a better than even chance that mary put down the apple, or Fred moved to the office.
invalid_hypothesis: There is almost no chance that mary put down the apple, or Fred moved to the office.
hypothesis_assertion: Mary put down the apple, or Fred moved to the office.