742
That would only be an issue for  Australia  should the current review of future air combat needs concludes the  Royal Australian Air Force  ( RAAF ) needs the Raptor to maintain air superiority .
 country of headquarters: Australia, Royal Australian Air Force
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: Australia, Royal Australian Air Force