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He has often been referred to by Western media as the Butcher of Bosnia a title also sometimes applied to  Radovan Karad?i  ? the former President  of Republika Srps  ka .
 employee of: Radovan Karad?i, of Republika Srps
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:
 employee of: Radovan Karad?i, of Republika Srps