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The Estonian Popular Front was founded in April 1988 On June 16 1988  Gorbachev  replaced Karl Vaino the ' old guard ' leader of the  Communist Party  of Estonia with the relatively liberal Vaino the Soviet ambassador to Nicaragua .
 employee of: Gorbachev, 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: Gorbachev, Communist Party