Task: Story Composition
Input (English): Premise: Mary was boarding a train to visit her grandma. 
 Initial Context: She had a private compartment and enjoyed watching the scenery. 
 Original Ending: She traveled for a full day before the train pulled into the station. Her grandma met her there and showed her a great week in town! After her visit, Mary boarded the same train to return home. 
 Counterfactual Context: She had horrible anxiety because the train was too crowded.
Output (English): She traveled for a full day before the train pulled into the station. Her grandma met her there and showed her a great week in town! After her visit, Mary was still very nervous about the trip to return home.