Task: Story Composition
Input (English): Premise: John pointed a gun at the clerk. 
 Initial Context: He threatened him and asked him for his money. 
 Original Ending: The clerk came prepared with a shotgun. The clerk pointed the shotgun and asked him to leave. John was scared and so he left and the clerk called the police. 
 Counterfactual Context: He threatened him and asked him for his money but the clerk didn't have a shotgun.
Output (English): The assistant came prepared with a shotgun. The assistant pointed the shotgun and asked him to leave. John was scared and so he left and the clerk called the police.