The Kennedy Center Friedheim prize is awarded by a performing arts center located on which river?
Stephen Paulus:  He received grants from the National Endowment for the Arts and Guggenheim Foundation and won the prestigious Kennedy Center Friedheim Prize. John F. Kennedy Center for the Performing Arts: The John F. Kennedy Center for the Performing Arts (formally called the John F. Kennedy Memorial Center for the Performing Arts, and commonly referred to as the Kennedy Center) is a performing arts center located on the Potomac River, adjacent to the Watergate complex in Washington, D.C.
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