Task: Story Composition
Input (English): Premise: I was playing Pokemon Go with my friend. 
 Initial Context: We were running around to various Pokestops. 
 Original Ending: I wasn't looking where I was going, and walked right off a cliff. I fell about 50 feet, and sustained a broken ankle. My friend called an ambulance. 
 Counterfactual Context: I walked right into a door.
Output (English): I wasn't looking where I was going, and walked right off a cliff. I fell about 50 feet, and sustained a broken ankle. My friend called an ambulance.