Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Premise: Nat and James were barbecuing in their backyard. 
 Initial Context: They were both in their pajamas. 
 Original Ending: What they didn't know was that the material was flammable. They were both at the grill cooking their food. All of a sudden their pajamas caught on fire! 
 Counterfactual Context: They were both in their work clothes.
Student:
What they didn't know was that the material was flammable. They were both at the grill cooking their food. All of a sudden their work clothes caught on fire! 