22075
The Internet should be free , and I have always opposed the idea of registering users , because this is perhaps the only channel we have for free discussion , '' said Zhu Dake , a sociologist and cultural critic at Tongji University , in Shanghai . ''
 location contains: Shanghai, Tongji University
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
 Entity Pairs:  Shanghai, Tongji University 
Answer:
 location contains: Shanghai, Tongji University