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The risk of political embarrassment inside Italy was underscored Tuesday after one of Mr. Pollari 's lawyers said the defense would call to the stand both the current prime minister , Romano Prodi , and the prime minister at the time , Silvio Berlusconi .
 nationality: Romano Prodi, Italy; nationality: Silvio Berlusconi, Italy
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:  Romano Prodi, Italy; Silvio Berlusconi, Italy 
Answer:
 nationality: Romano Prodi, Italy; nationality: Silvio Berlusconi, Italy