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Possible , '' Mr. Prodi quickly corrected -- and thus in one characteristically precise word summed up the campaign leading to the election on April 9 and 10 , which has pitted the irrefutably unexciting Mr. Prodi against the least predictable of politicians , Silvio Berlusconi , for five years Italy 's prime minister .
 Silvio Berlusconi, Italy
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:
 Silvio Berlusconi, Italy