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Robert was supposed to face former three-time titleholder  Mikkel Kessler  in his hometown of Copenhagen  Denmark  to defend his 168-pound belt on April 14 2012 but Kessler pulled out due to injury .
 country of birth: Mikkel Kessler, Denmark
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:
 country of birth: Mikkel Kessler, Denmark