Task: Story Composition
Input (English): Premise: Billy loved to jump from high trees when he was young. 
 Initial Context: His friends told him he took too much risk. 
 Original Ending: However, Billy loved how it felt to jump. One day he jumped from a tree and broke his arm. From that day on, Billy decided to stop jumping from trees. 
 Counterfactual Context: His friends made him promises never to do it again.
Output (English): However, Billy loved how it felt to jump. One day he jumped from a tree and broke his arm. From that day on, his friends decided to tell Billy's story about jumping from trees as a warning to others.