36200
Mark Mazower , the author of '' Salonica , City of Ghosts : Christians , Muslims and Jews , 1430-1950 , '' is a professor of history at Columbia University .
 person of company: Mark Mazower, Columbia 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:  Mark Mazower, Columbia University 
Answer:
 person of company: Mark Mazower, Columbia University