Task: Story Composition
Input (English): Premise: John went skating with friends. 
 Initial Context: His friends all did a trick that John had not yet tried. 
 Original Ending: John tried the trick but fell and broke his ankle. Since he could not walk home, John's friends called his mother. His mother arrived and said John was no longer allowed out to skate. 
 New ending: John tried a trick but fell and broke his ankle. Since he could not walk home, John's friends called his mother. His mother arrived and said John was no longer allowed out to skate. 
Output (English): John was a skilled skater but hadn't been skating in a while.