3874
In recent years  Zhejiang University  maintains a leading position in  China  in output indicators including publications patents and etc. and has made abundant important achievements in science technology humanities and social sciences .
 country of headquarters: Zhejiang University, China
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 country of headquarters: Zhejiang University, China