There are hundreds of distinct neighborhoods throughout the five boroughs of New York City, many with a definable history and character to call their own. If the boroughs were each independent cities, four of the boroughs (Brooklyn, Queens, Manhattan, and the Bronx) would be among the ten most populous cities in the United States.
Which four boroughs of NYC would be among the the most populous cities in the US if they were independent cities?
{'text': 'Brooklyn, Queens, Manhattan, and the Bronx', 'answer_start': 223}