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Matthew Longo Jerusalem , March 12 , 2006 The writer , a research assistant in the political science department at Yale , served as a short-term observer for the Organization for Security and Cooperation in Europe during the 2003 presidential and parliamentary elections in Serbia .
 location contains: Europe, Serbia
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:  Europe, Serbia 
Answer:
 location contains: Europe, Serbia