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After Korea's liberation August 1945 he set up the Korean Communist Party organization in the South but under pressure from US authorities he moved to  North Korea  in April 1948 and attended a meeting with  Kim Gu  and Kim Kyu-sik on the subject of Korean reunification .
 North Korea, Kim Gu
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 North Korea, Kim Gu