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In Wednesday night 's episode , '' The Wake Up Call , '' Christopher Lloyd -LRB- '' Back to the Future '' -RRB- made a guest appearance as Prof. Lawrence Lessig , a Harvard University legal expert enlisted to explain particulars of the Constitution to members of a delegation from Belarus as they write a new , democratic constitution .
 person of company: Lawrence Lessig, Harvard University
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 person of company: Lawrence Lessig, Harvard University