context: There is almost no chance that Sandra left the football. Chances are slight that Fred moved to the office. It is improbable that Greg is a rhino.
hypothesis: It is highly likely that either Greg is a rhino, or Sandra left the football.
valid_hypothesis: There is little chance that either Greg is a rhino, or Sandra left the football.
invalid_hypothesis: It is highly likely that either Greg is a rhino, or Sandra left the football.
hypothesis_assertion: Either Greg is a rhino, or Sandra left the football.