Instructions: Given a premise, an initial context, an original ending, and a counterfactual context, the task is to generate a new story ending aligned with the counterfactual context and as close to the original ending as possible. Each instance consists of a five-sentence story. The premise is the first sentence of a story, and the second sentence, which is the initial context, provides more information about the story's context and the story's general plot. The original ending is the last three sentences of the story. Also, a counterfactual context is a slight modification to the initial context. You should write a new story ending that edits the original story ending as little as possible to regain coherence with the counterfactual context. To sum up, you should write the last three sentences of a story based on the premise(first sentence) and the counterfactual context(second sentence) of the story.
Input: 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:
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. 