context: Chances are slight that Mary went to the garden. It is highly likely that Greg is gray. It is highly unlikely that Fred is in the cinema.
hypothesis: It is highly likely that either Greg is gray, or Fred is in the cinema.
valid_hypothesis: It is highly likely that either Greg is gray, or Fred is in the cinema.
invalid_hypothesis: It is impossible that either Greg is gray, or Fred is in the cinema.
hypothesis_assertion: Either Greg is gray, or Fred is in the cinema.