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 In Italy , where voters went to the polls on Sunday and yesterday , the opposition coalition led by Romano Prodi has talked of changing one of the few steps taken by Prime Minister Silvio Berlusconi to raise the retirement age gradually and thus ease by a little the burden on the government pension system . 
 nationality: Romano Prodi, Italy; nationality: Silvio Berlusconi, Italy
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: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 nationality: Romano Prodi, Italy; nationality: Silvio Berlusconi, Italy