Task: Story Composition
Input (English): Premise: Harriet was a big fan of Abba. 
 Initial Context: She listened to their songs every day. 
 Original Ending: When her birthday came up, her friends knew what music to choose. They made a big Abba compilation so they could dance all night. Harriet had the best birthday of her life that year. 
 New ending: When her birthday came up, her friends did not know what music to choose. They woudl have made a big Abba compilation so they could dance all night if they had known. Still, Harriet had the best birthday of her life that year. 
Output (English): No one knew she listened to their songs every day.