Task: Story Composition
Input (English): Premise: Casey was five and she really wanted a puppy. 
 Initial Context: Her parents told her they couldn't have a puppy right now. 
 Original Ending: Every day for a year, Casey asked about having a puppy. Finally Christmas day came. That morning, Casey cried when her gift was a new puppy! 
 Counterfactual Context: Her parents agreed and got her a puppy.
Output (English): Every day for the previous year, Casey had asked about having a puppy. Finally Christmas day came. That morning, Casey cried when her gift was a new puppy!