2701
Pavlik rebounded last February by stopping  Mexico  's Marco Antonio Rubio in the ninth round to retain his 160-pound crown which he risks for a third time against US southpaw  Williams  37-1 with 27 knockouts .
 countries of residence: Mexico, Williams
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: Mexico, Williams