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Citadel recently announced the appointment of Owen Hegarty Australian mining identity who was the CEO of  Oxiana  until its recent merger with Zinifex to create  Oz Minerals  .
 founded by: Oxiana, Oz Minerals
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:
 founded by: Oxiana, Oz Minerals