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After World War II the Air Force in consisted primarily of the Air Transport Command and its successor the Military Air Transport Service ( MATS ) until 1 July 1957 when Headquarters Far East Air Forces completed its move from Japan to and was redesignated the  Pacific Air Forces  (  PACAF  ) .
 alternate names: Pacific Air Forces, PACAF
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:
 alternate names: Pacific Air Forces, PACAF