Task: Story Composition
Input (English): Premise: Dave is in a classical band. 
 Initial Context: Dave plays the flute for the band. 
 Original Ending: Dave plays 18 songs with his band. Dave gets tired and has to stop playing. Dave packs his flute up and goes home. 
 Counterfactual Context: Dave plays the violin for the band.
Output (English): Dave plays 18 songs with his band. Dave gets tired and has to stop playing. Dave packs his violin up and goes home.