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Obama appeared with commission co-chairs  Democrat   Erskine Bowles  White House chief of staff for ex-president Bill Clinton and former Republican senator Alan Simpson of Wyoming .
 employee of: Democrat, Erskine Bowles
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:
 employee of: Democrat, Erskine Bowles