Task: Story Composition
Input (English): Premise: I play the piano. 
 Initial Context: And I practice for a piano recital every year. 
 Original Ending: I practice until I've mastered the song. Then I invite family and friends to my recital. And I play my song for them. 
 Counterfactual Context: I hate practicing it, though.
Output (English): My mom makes me practice until I've mastered the song. Then I invite family and friends to my recital. And I play my song for them.