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London Buses  route 463 is a Transport for London contracted bus route in  London  United Kingdom .
 city of headquarters: London Buses, London
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  London Buses, London 
Answer:
 city of headquarters: London Buses, London