Task: Story Composition
Input (English): Premise: The mailman threw a huge box in front of my house. 
 Initial Context: I took it inside and opened up the package. 
 Original Ending: My new shelf was inside of the box. I eagerly took the parts and built the shelf in my room. Afterwards, I placed my school books in there. 
 New ending: His new shelf was inside of the box. He eagerly took the parts and built the shelf in his room. Afterwards, he placed his school books in there. 
Output (English): I checked the box and it was addressed to my neighbor.