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Steven D. Silverman ( born October 28 1966 ) is an American trial lawyer best known for his work on various cases including the decade-long representation of former undisputed heavyweight  boxing champion   Riddick Bowe  .
 title of person: boxing champion, Riddick Bowe
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:
 title of person: boxing champion, Riddick Bowe