585
His first operational assignment was as an F-100 pilot with the 461st Fighter-Day Squadron of the 36th Tactical Fighter Wing at  Hahn Air  Base  Germany  .
 country of headquarters: Hahn Air, Germany
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:
 country of headquarters: Hahn Air, Germany