Task: Story Composition
Input (English): Premise: Before Hank goes grocery shopping, he makes sure to write a list. 
 Initial Context: One time Hank went grocery shopping without a list. 
 Original Ending: He bought lots of groceries and extra food too! When he got home, he realized that he didn't buy everything he needed. From that day on, Hank made sure to write a grocery list. 
 Counterfactual Context: Hank never forgets to go grocery shopping without a list.
Output (English): He bought lots of groceries and extra food too! When he got home, he knew that he bought everything he needed because of his list. Hank always made sure to write a grocery list.