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The  Kowloon Motor Bus  Company ( 1933 ) Limited ( KMB ; ) a company of the Transport International Holdings Limited is the largest franchised bus operators in  Hong Kong  and one of the largest privately owned public bus operators in the world .
 city of headquarters: Kowloon Motor Bus, Hong Kong
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: Kowloon Motor Bus, Hong Kong