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Exxon-Mobil tops on the Fortune 500 list this year had its roots in the  1870  founding of  Standard Oil  Co. by John D. Rockefeller .
 founded: 1870, Standard Oil
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: 1870, Standard Oil