Task: Story Composition
Input (English): Premise: Becky loved chocolate. 
 Initial Context: Tom was her boyfriend. 
 Original Ending: Tom decided to buy her a lot of good chocolate. She was very appreciative of the thoughtful gift. They went on to get married and live happily ever after. 
 Counterfactual Context: Tom was her brother.
Output (English): Tom decided to buy her a lot of good chocolate. She was very appreciative of the thoughtful gift. They went on to attend each other's weddings and both couples lived happily ever after.