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German flag carrier Lufthansa formally closed its acquisition of  Austrian Airlines  (  AUA  ) on Thursday in a move it hopes will enable it to overtake Air France-KLM as Europe's biggest airline .
 Austrian Airlines, AUA
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:
 Austrian Airlines, AUA