863
The Khmer Rouge period ( 1975 1979 ) refers to the rule of Pol Pot Nuon Chea Ieng Sary Son Sen  Khieu Samphan  and the Khmer Rouge Communist party over Cambodia which the Khmer Rouge renamed as  Democratic Kampuchea  .
 employee of: Khieu Samphan, Democratic Kampuchea
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: Khieu Samphan, Democratic Kampuchea