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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 .
 WADF, United States
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 WADF, United States