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In Geithner's last job at  Treasury  he was under secretary for international affairs under Secretaries  Robert Rubin  and Lawrence Summers who was also considered a top candidate for Treasury secretary in an Obama administration .
 employee of: Treasury, Robert Rubin
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Treasury, Robert Rubin 
Answer:
 employee of: Treasury, Robert Rubin