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Steven D. Levitt , co-author of '' Freakonomics , '' and Chad Syverson , both University of Chicago economists , found that real estate agents have an incentive to persuade their clients to sell their houses too cheaply and too quickly because a few thousand dollars more in price wo n't yield them a significantly higher commission . -RRB-
 person of company: Steven D. Levitt, 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:  Steven D. Levitt, University of Chicago 
Answer:
 person of company: Steven D. Levitt, University of Chicago