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We are gathered in  Bangkok  Thailand for the International Development Studies Conference on Mainstreaming Human Security : The Asian Contribution held on 4-5 October 2007 at  Chulalongkorn University  .
 city of headquarters: Bangkok, Chulalongkorn University
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: Bangkok, Chulalongkorn University