Task: Story Composition
Input (English): Premise: When Mitt was ten he wanted to be a pro wrestler. 
 Initial Context: He would practice on his little brother in the living room. 
 Original Ending: One day he accidentally slammed his brother on the fireplace. His dad, furious, came in yelling and told him wrestling was fake. Mitt was so crushed that he could never watch wrestling again. 
 Counterfactual Context: He would practice by himself in the living room.
Output (English): One day he accidentally slammed a vase on the fireplace. His dad, furious, came in yelling and told him wrestling was fake. Mitt was so crushed that he could never watch wrestling again.