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The  Khmer Rouge  led by Brother Number One  Pol Pot  emptied Cambodia's cities during its 1975-1979 rule exiling millions to vast collective farms in a bid to take society back to Year Zero and forge a Marxist utopia .
 employee of: Khmer Rouge, Pol Pot
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: Khmer Rouge, Pol Pot