10622
The  WADF  was responsible for the air defense of the Western  United States  and controlled air defense units in Washington Oregon California Arizona Nevada Idaho Wyoming Colorado Montana and New Mexico .
 country of headquarters: WADF, United States
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: WADF, United States