Task: Story Composition
Input (English): Premise: Sophie wanted to learn how to do gymnastics. 
 Initial Context: She joined a gymnastics gym. 
 Original Ending: She worked really hard to learn to do flips. After months of practice she finally did her first back flip. Now she can do lots of flips. 
 New ending: She had worked really hard to learn to do flips. After months of rehabilitation she finally was able to do back flips again. Now she can do lots of flips. 
Output (English): She broke her arm and couldn't join a gymnastics gym.