7157
Indonesia  ordered 12 F-16A / B Fighting Falcon Block 15 OCU as a new fighter to strengthen the  Indonesian Air Force  in 1989 .
 Indonesia, Indonesian Air Force
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:
 Indonesia, Indonesian Air Force