Premise: Wang Tieguan ()is a Chinese noted geologist,Academician of the Chinese Academy of Sciences,Professor of China University of Petroleum,PhD Tutor born in December,1937,born in Shanghai City,People's Republic of China in December,1937, graduated from Beijing Petroleum Geology School(predecessor of Yangtze University)in 1956 and from Beijing Petroleum Institute in 1965.
Hypothesis: Wang Tieguan graduated 5 times