Task: Story Composition
Input (English): Premise: Gary was walking his dog on the sidewalk. 
 Initial Context: The dog managed to break through the leash and ran away. 
 Original Ending: It ran towards a crowded street with a traffic. A man hit the dog on the side while he was driving. Since he only felt a small thud, he didn't bother to stop. 
 New ending: Gary had to fight to keep his dog. He ended up buying a stronger leash. Gary had no more problems. 
Output (English): The dog couldn't break through the leash and run away.