The Duchess Of Cambridge And First Lady Of New York City Visit Northside Center For Child Development [Getty Images]

NEW YORK, NY - DECEMBER 08: Catherine, Duchess of Cambridge sits next to April, 4, left, and Sammy, 4, in a pre-school class as she visits Northside Center for Child Development during her official two-day visit to the United States on December 8, 2014 in New York City. (Photo by Seth Wenig-Pool/Getty Images)

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