Task: Story Composition
Input (English): Premise: Meg bought new stiletto shoes so she could be tall as a model. 
 Initial Context: She wobbled around at work in the six-inch heels, feeling super. 
 Original Ending: Then Meg tripped on a curb in the wobbly heels. The doctor had to put a cast on her broken foot. Meg put on a sneaker and put the stilettos in the back of her closet. 
 Counterfactual Context: She walked around at work with six inch heels, never tripping.
Output (English): But when she left work Meg tripped on a curb in the wobbly heels. The doctor had to put a cast on her broken foot. Meg put on a sneaker and put the stilettos in the back of her closet.