Task: Story Composition
Input (English): Premise: Smith challenged me to a contest. 
 Initial Context: He told me to give him $10 dollars if he can jump off the roof. 
 Original Ending: I accepted the challenged and he went on top of the roof. When he jumped off, he ended up tripping. His back landed on the floor first. 
 Counterfactual Context: It was a pie eating contest.
Output (English): I accepted the challenged and he laid out the pies. When he won, he ended up breaking his chair. His back landed on the floor first.