Task: Story Composition
Input (English): Premise: Angie wanted to surprise her kids with a trip to the zoo. 
 Initial Context: She packed up the things they would need for the day. 
 Original Ending: The kids got in the car and she told them she had a surprise. She pulled into the zoo parking lot. The kids were excited to see that they were at the zoo. 
 Counterfactual Context: She put the things they needed in a taxi.
Output (English): The kids got in the taxi and she told them she had a surprise. They pulled into the zoo parking lot. The kids were excited to see that they were at the zoo.