Song Chuanzhong does exercises outside his cave studio in Yuqing County, southwest China's Guizhou Province, Feb. 26, 2016. Mr. Song, a 67-year-old painter, set up his art studio in a natural karst cave of about 60 square meters, where he used to live in for almost 30 years until last year but still came to paint and enjoyed a good time everyday. (Xinhua/Liu Xu)
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