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WUMA VILLAGE, CHINA - JULY 8: (CHINA OUT) Tibetan students of the Wuma Village First Central Primary School leave school at Wuma Village on July 8, 2006 in Dangxiong County of Tibetan Autonomous Region, China. Tibet has tried to popularize six-year compulsory education among pasture area students in recent years. (Photo by China Photos/Getty Images)

WUMA VILLAGE, CHINA - JULY 8: (CHINA OUT) Tibetan students of the Wuma Village First Central Primary School leave school at Wuma Village on July 8, 2006 in Dangxiong County of Tibetan Autonomous Region, China. Tibet has tried to popularize six-year compulsory education among pasture area students in recent years. (Photo by China Photos/Getty Images)