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Cass Sunstein , a law professor at the University of Chicago and an expert on constitutional law , agrees that the courts have been less than explicit when it comes to matters involving prayer and coaches at public schools . ''
 person of company: Cass Sunstein, University of Chicago
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:  Cass Sunstein, University of Chicago 
Answer:
 person of company: Cass Sunstein, University of Chicago