Task: Story Composition
Input (English): Premise: Luke has always wanted to learn how to play the guitar. 
 Initial Context: He decides to start practicing. 
 Original Ending: At first he finds it very difficult. However, eventually he improves. Luke is glad to be learning the guitar. 
 Counterfactual Context: He decided to take lessons with his friend.
Output (English): At first he finds it very difficult. However, eventually he improves. Luke is happy to have a friend to take lessons with him.