Task: Story Composition
Input (English): Premise: Steven had a date with a girl named Nancy. 
 Initial Context: Steven's mother allowed him to borrow her car. 
 Original Ending: He drove to Nancy's house to pick her up. On the way to her house he crashed the car. Steven's mother never let Steven borrow her car again. 
 Counterfactual Context: Steven's mother prohibited him to borrow her car.
Output (English): He took a taxi to Nancy's house to pick her up. On the way to her house the taxi crashed. Steven's mother never let Steven take a taxi again.