Task: Story Composition
Input (English): Premise: Mary didn't want to play piano. 
 Initial Context: Her parents tried to teach her but she refused to listen. 
 Original Ending: One day a guy she liked said he played piano. Mary went home and practiced so much she forgot about the guy. She became a concert musician and never thought of the guy again. 
 Counterfactual Context: Her parents hired her a tutor and she decided to give it a chance.
Output (English): One day a guy she liked said he played piano. Mary went home and practiced so much she forgot about the guy. She became a concert musician and never thought of the guy again.