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Mr. Rosen will replace N. Gregory Mankiw , who resigned last week and returned to Harvard University after two stormy years as one of Mr. Bush 's top economic advisers .
 person of company: N. Gregory Mankiw, Harvard 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:  N. Gregory Mankiw, Harvard University 
Answer:
 person of company: N. Gregory Mankiw, Harvard University