Task: Story Composition
Input (English): Premise: William was playing basketball in the park. 
 Initial Context: After making a far shot, the ball flew and hit a group of guys. 
 Original Ending: They were immediately irritated and stood up from the bleachers. As they approached William, he ran. They tried to chase him before he got away. 
 Counterfactual Context: After making a far shot, the ball flew and hit an elderly woman.
Output (English): She was immediately irritated and stood up from the bleachers. As she approached William, he ran. She tried to chase him before he got away.