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In the background , just out of the frame of paparazzi snapshots , you could often find the Columbia University economist Jeffrey Sachs , who has undertaken worthy village-level initiatives to improve African agriculture and education .
 Jeffrey Sachs, Columbia University
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 Jeffrey Sachs, Columbia University