Task: Story Composition
Input (English): Premise: It was time to plan my daughter's sweet 16 party. 
 Initial Context: My daughter Theresa, wanted a Mardi Gras theme. 
 Original Ending: She picked out a colorful gown and shoes to match. Then she went on the internet and found the perfect teal mask to wear. Using my credit card to buy the mask, she was done with her outfit. 
 Counterfactual Context: My daughter wanted a halloween theme.
Output (English): She picked out a dark gown and shoes to match. Then she went on the internet and found the perfect scary mask to wear. Using my credit card to buy the mask, she was done with her outfit.