Task: Story Composition
Input (English): Premise: Margot was a baby. 
 Initial Context: She wanted to walk. 
 Original Ending: So one day she pushed up her bottom. She stretched her legs. Then Margot took her first steps. 
 Counterfactual Context: She wanted to fly.
Output (English): So one day she pushed up her bottom and prepared to fly. She stretched her legs. Then Margot tried to fly, not realizing she couldn't.