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Yan Xuetong (Chinese: ; Pinyin: Yan Xuetong; born December 7, 1952 in Tianjin, China) is Dean Doctor of Philosophy the Institute of Modern International Relations at Tsinghua University and the Chief Editor of The Chinese Journal of International Politics (Oxford University Press). Professor Yan received his ((NAM: Ph.D)) in political science from University of California, Berkeley in 1992. In 2008, Yan was named as one of world's Top 100 public intellectuals by the American journal Foreign Policy.
 education degree: Yan Xuetong, Doctor of Philosophy
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
 Entity Pairs:  Yan Xuetong, Doctor of Philosophy 
Answer:
 education degree: Yan Xuetong, Doctor of Philosophy