Task: Story Composition
Input (English): Premise: David asked his father if they could drive to the toy store. 
 Initial Context: While they were driving David counted his allowance. 
 Original Ending: At the toy store, David ran over to the toy cars. He picked out a car that he could afford. David bought the car and took it home. 
 Counterfactual Context: While they were driving David lost his allowance.
Output (English): At the toy store, David ran over to the toy cars. He cried when he saw the car that he could no longer afford. David's dad bought the car for him and David took it home.