Task: Story Composition
Input (English): Premise: Justin built a big snow fort last week. 
 Initial Context: The fort was over four feet tall. 
 Original Ending: Justin would use it to hide in during snowball fights. The sun came out and the weather warmed up. The snow fort melted and is just a pile of snow now. 
 Counterfactual Context: He was so proud of the fort and his jealous brother kicked the fort down out of meanness.
Output (English): Justin would use it to hide in during snowball fights before the brother destroyed it. The sun came out and the weather warmed up. The snow fort would have melted, even if his brother handn't destroyed it.