Task: Story Composition
Input (English): Premise: Sandy needed a car. 
 Initial Context: She went to a dealership and looked around. 
 Original Ending: Finally, she selected an affordable car. She filled out the paperwork and made a down payment. Afterwards, she drove home in her new car. 
 Counterfactual Context: She never went to dealerships.
Output (English): She selected an affordable car she found on Craigslist. She filled out the paperwork and made a down payment with the previous owner. Afterwards, she drove home in her new used car.