Task: Story Composition
Input (English): Premise: John went to a new gym to work out. 
 Initial Context: He hadn't exercised in a long time and wanted to ease his way back in. 
 Original Ending: A pretty girl was on the treadmill. John lifted more weight than he ever had before. John was sore for a week afterwards! 
 Counterfactual Context: The gym only allowed men.
Output (English): A muscular man was on the treadmill. John lifted more weight than he ever had before. John was sore for a week afterwards!