1578
Upon his return he worked as an official for the  Chicago  Burlington and Quincy Railroad and the  Chicago Union Station Company  before being elected to the presidency of the Chicago Great Western Railway in 1925 .
 city of headquarters: Chicago, Chicago Union Station Company
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:
 city of headquarters: Chicago, Chicago Union Station Company