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Biography Xu attended the Nanjing University of Aeronautics and Astronautics and received a MS in Aerodynamics in 1992 .
 Xu, Nanjing University of Aeronautics and Astronautics
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Xu, Nanjing University of Aeronautics and Astronautics