Task: Story Composition
Input (English): Premise: Sarah lives far away from her family. 
 Initial Context: She sees them very rarely. 
 Original Ending: Sarah wants to visit home for Christmas, but can't afford to travel. One day, Sarah gets an envelope in the mail. It's a plane ticket her parents bought for her to come home. 
 Counterfactual Context: She can afford to see them quite often.
Output (English): Sarah wants to visit home for Christmas, but she has plans that day. One day, Sarah gets an envelope in the mail. The company event was cancelled and she could come home for Christmas.