Task: Story Composition
Input (English): Premise: Billy's dad was taking him to see ice carvings that night. 
 Initial Context: There were all kinds of animals carved in ice. 
 Original Ending: The highlight was a huge dragon. When it got dark, Billy discovered there were green lights in it. He thought it was the most beautiful thing he'd ever seen. 
 Counterfactual Context: There were all kinds of trees carved in ice.
Output (English): The highlight was a huge dragon beside one of the trees. When it got dark, Billy discovered there were green lights in the dragon. He thought it was the most beautiful thing he'd ever seen.