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By that stage in the conflict most surviving leaders of the Eastern Military Zone had escaped into Vietnam where they assembled at various secret camps with the purpose of forming a Vietnamese-backed liberation army to fight against  Pol Pot  Khmer Rouge regime.Morris p. 107 Meanwhile the Vietnamese  Communist Party  Politburo was meeting in Hanoi to discuss its strategy for Kampuchea .
 employee of: Pol Pot, Communist Party
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: Pol Pot, Communist Party