Task: Story Composition
Input (English): Premise: Mel had a big list of Christmas presents to buy. 
 Initial Context: She set off for the mall and began to shop. 
 Original Ending: The mall was so busy, she had to push and squeeze! It took her five hours to shop. But when she left, she had every item on her list! 
 Counterfactual Context: She decided to shop online to avoid the long lines.
Output (English): The mall was so busy, so she was happy. It took her five hours to shop. But when she finished, she had every item on her list!