Task: Story Composition
Input (English): Premise: Anna's older sister had had twin babies. 
 Initial Context: Anna was excited to babysit them. 
 Original Ending: Finally, the time came for Anna to baby sit. Her sister went away for an hour. While she was gone, Anna did a great job with the babies. 
 Counterfactual Context: Anna hated kids so she never agreed to babysit them.
Output (English): Finally, the time came when Anna could not avoid babysitting them. Her sister went away for an hour. While she was gone, Anna did a great job with the babies.