Task: Story Composition
Input (English): Premise: Anna loves chocolate. 
 Initial Context: For her birthday she ordered a large chocolate cake. 
 Original Ending: At the party, she cut into the cake and was shocked to see vanilla. The bakery had made a terrible mistake. Anna was very disappointed about the birthday cake. 
 Counterfactual Context: For her birthday she ordered a box of chocolate cookies.
Output (English): At the party, she opened the box of cookies and was shocked to see vanilla. The bakery had made a terrible mistake. Anna was very disappointed about the birthday cookies.