Task: Story Composition
Input (English): Premise: The runner rounded 3rd base. 
 Initial Context: The catcher had the ball, waiting to tag the runner out. 
 Original Ending: The runner braced himself for impact. He slammed into the catcher in front of home plate. The catcher sprained his ankle in the collision. 
 Counterfactual Context: The catcher had the ball, so the runner stayed on third.
Output (English): The runner kept his foot firmly on the base. He watched the catcher in front of home plate. The catcher threw the ball to the pitcher.