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Lisa P. Jackson the  EPA  administrator said in an interview that she had reversed the ruling by her predecessor  Stephen L. Johnson  because the traditional presumption had been that California with its history of air pollution had grounds to establish rules that exceed federal requirements .
 employee of: EPA, Stephen L. Johnson
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: EPA, Stephen L. Johnson