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Russian President Dmitry Medvedev is to pay a working visit to  Italy  at the invitation of his Italian counterpart  Giorgio Napolitano  on Saturday the Kremlin press service said Wednesday .
 countries of residence: Italy, Giorgio Napolitano
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: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 countries of residence: Italy, Giorgio Napolitano