A man and his two young nephews were rescued 13 days after getting lost in a cave without any food, the official Xinhua News Agency said Saturday. Sun Zhongfu, 22, and his nephews, Li Chengqing, 10, and Li Wanqun, 12, wandered into the cave in Guizhou province with a candle, but it soon went out, Xinhua said. They were unable to find the exit in the darkness. They survived by drinking water from a stream. The report said the three were ''thin but in good spirits.'' Xinhua said five men fishing in a stream near the cave's entrance on Sept. 22 heard the trio's weak cries for help.