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Deutsche Post AG operating under the trade name Deutsche Post  DHL  is the world's largest courier company.Annual report of Deutsche Post AG for 2011facts figures 2013 With its headquarters in  Bonn  the corporation has employees ( FTE ) in more than 220 countries and territories worldwide and generated revenue of 51.48 billion in 2010 .
 city of headquarters: DHL, Bonn
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:  DHL, Bonn 
Answer:
 city of headquarters: DHL, Bonn