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thumb |  Saudi Aramco  headquarters complex Saudi Aramco ( ) officially the  Saudi Arabian Oil Company  is a Saudi Arabian national oil and natural gas company based in Dhahran Saudi Arabia .
 Saudi Aramco, Saudi Arabian Oil Company
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:
 Saudi Aramco, Saudi Arabian Oil Company