Task: Story Composition
Input (English): Premise: John is an avid snowboarder. 
 Initial Context: During a run down a mountain, he hit some rough snow and tumbled. 
 Original Ending: Because of the fall, John broke his arm in three places! It took a long while for John to heal, but he was optimistic. Now fully healed, John is still doing what he loves. 
 Counterfactual Context: During a run down a mountain, he hit some rough snow but recovered safely.
Output (English): Because of the rough snow, they closed the mountain. It took a long while for John to snowboard again, but he was optimistic. Now the snow is smooth, John loves to snowboard again.