780
Many of his father's old allies blamed the son for splitting the white vote with  Byrne  and allowing the relatively unknown Washington to become  Chicago  's first black mayor .
 cities of residence: Byrne, Chicago
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:
 cities of residence: Byrne, Chicago