2998
As leader of the  Khmer Rouge  which ruled Cambodia in a reign of terror from 1975-79  Pol Pot  was responsible for the deaths of as many as 2 million of his 7.9 million countrymen .
 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