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Secretary-General Ban Ki-moon marked the 10th anniversary of the death of  Khmer Rouge  leader  Pol Pot  on Tuesday with an urgent plea that senior leaders of the brutal revolutionary regime be brought to justice .
 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