Task: Story Composition
Input (English): Premise: Kate was going on a trip out of town. 
 Initial Context: And she had overstuffed her luggage. 
 Original Ending: She was pulling and pulling but the zipper wouldn't close. She sat on the suitcase and tugged hard at the zipper. She was shocked when the zipper pull broke off in her hands. 
 Counterfactual Context: And she had underpacked her bags so she'd have room for gifts.
Output (English): She was pulling and pulling but the zipper wouldn't close. She tugged hard at the zipper. She was shocked to see that one of her few pieces of clothing got stuck in the zipper.