Task: Story Composition
Input (English): Premise: Cindy's grandfather always made his own root beer. 
 Initial Context: He mixed it up and dropped a raisin in each bottle. 
 Original Ending: He would then cap the bottles and put them in the basement. Weeks later, Cindy would hear popping noises from the basement. The exploding tops meant that the root beer was ready to drink. 
 New ending: He used to cap the bottles and put them in the basement. Weeks later, Cindy would hear popping noises from the basement. The exploding tops meant that the root beer was ready to drink. 
Output (English): But, as he grows old, he forgot the recipe to the root beer.