Task: Story Composition
Input (English): Premise: Maggie had plans to see a concert. 
 Initial Context: She arrived at the theater on time. 
 Original Ending: For some reason, there was nobody there. She opened her phone to check for any notices. Then, she discovered that the concert had been cancelled. 
 Counterfactual Context: She went with friends and had a good time.
Output (English): For some reason, her friends left early. She opened her phone to check for any notifications. Then, she discovered that there was another concert nearby.