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"Federer, Nadal, Djokovic, Wawrinka, reach ATP Finals semis"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Sports_News/2013/11/09/Federer-Nadal-Djokovic-Wawrinka-reach-ATP-Finals-semis/UPI-90181384022351/>