Task: Story Composition
Input (English): Premise: Joseph decided he wanted to learn to play a new instrument. 
 Initial Context: He bought a guitar from the music store. 
 Original Ending: He also bought a book which illustrated a few basic chords. He practiced these chords for many weeks. Joseph was finally able to play a full song on the guitar. 
 New ending: Then he a bought a piano lesson book for beginners He practiced how to play the piano Joseph was finally able to play a full song on the piano. 
Output (English): He sold a guitar from the music store.