Task: Story Composition
Input (English): Premise: Peter's favorite activity was playing cards. 
 Initial Context: Every day he would play with Ed, his best friend. 
 Original Ending: One day Ed told Peter that he would be moving to a new town. Peter was very sad that Ed would be leaving. The next day, Ed told Peter his plans changed and he would be staying! 
 Counterfactual Context: Every day he would play with Greg, his only friend.
Output (English): One day Greg told Peter that he would be moving to a new town. Peter was very sad that Greg would be leaving. he next day, Greg told Peter his plans changed and he would be staying!