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Khieu Samphan  ( born July 27 1931 ) was the president of the state presidium of  Democratic Kampuchea  ( Cambodia ) from 1976 until 1979 .
 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