Task: Story Composition
Input (English): Premise: We attended a family cookout on July 4th this year. 
 Initial Context: My sister in law Ann's sister Betty, came over. 
 Original Ending: Betty lives in Greenfield, ninety miles from Boston. We ate ribs and hamburgers outside, and talked for hours. We had a good time, and left late. 
 New ending: John lives in Greenfield, ninety miles from Boston. We ate ribs and hamburgers outside, and talked for hours. We had a good time, and left late. 
Output (English): My sister in law Ann's brother John came over.