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In the FIDE world championship that concluded a week ago in San Luis , Argentina , the illustrious grandmasters included 30-year-old Veselin Topalov of Bulgaria , a modest-mannered competitor who jumped on the accelerator in the very first round and left the field so far behind so quickly that he coasted home .
 location contains: Argentina, San Luis
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:  Argentina, San Luis 
Answer:
 location contains: Argentina, San Luis