Task: Story Composition
Input (English): Premise: I wanted to know the name of the song I heard in my head. 
 Initial Context: I hummed it out loud but still could not name the song. 
 Original Ending: I sung it for my friends and family but they did not know it either. I searched through old CDs hoping I would find the song. I called a radio station, hummed them the song, now I know the song. 
 Counterfactual Context: I used a new app to identify the name of the song.
Output (English): That didn't work, so I sung it for my friends and family but they did not know it either. I searched through old CDs hoping I would find the song. I called a radio station, hummed them the song, now I know the song.