Task: Story Composition
Input (English): Premise: Melanie was turning 16. 
 Initial Context: Her family decided to throw her a sweet sixteen party. 
 Original Ending: They kept the entire party a surprise. They invited all of her friends and got her a bunch of gifts. Melanie was shocked and super happy when she found out. 
 Counterfactual Context: Her family couldn't throw her a party because she was grounded.
Output (English): They decided to throw her a party anyways, but kept the entire party a surprise. They invited all of her friends and got her a bunch of gifts. Melanie was shocked and super happy when she found out.