Task: Story Composition
Input (English): Premise: There was a massive comet passing over the sky. 
 Initial Context: Eric went onto his so he could watch it. 
 Original Ending: It was the most beautiful thing Eric had ever seen. When it was over he headed back down to his house. The door was locked and Eric forgot the key, but it was worth it. 
 Counterfactual Context: Eric watched from his bedroom window.
Output (English): It was the most beautiful thing Eric had ever seen. When it was over he headed back to bed. It was late at night, but it was worth it.