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The troubles at Yuganskneftegas come as Gazprom , the giant state-controlled energy company , is poised to buy the privately held Sibneft , Russia 's fifth-largest oil producer with more than 900,000 barrels a day , from Roman Abramovich , a Russian tycoon based in London .
 nationality: Roman Abramovich, Russia; geographic distribution: Russian, Russia
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:
 nationality: Roman Abramovich, Russia; geographic distribution: Russian, Russia