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Shares of  AGL Energy  Ltd.  Australia  's biggest power retailer tumbled Monday after the company lowered its earnings outlook as margins have come under pressure from soaring wholesale electricity prices .
 AGL Energy, Australia
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:
 AGL Energy, Australia