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Nikolai Tikhonov the Chairman of the Council of Ministers was succeeded by Nikolai Ryzhkov and Vasili Kuznetsov the acting Chairman of the  Presidium  of the Supreme Soviet was succeeded by  Andrei Gromyko  the former Minister of Foreign Affairs .
 Presidium, Andrei Gromyko
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:
 Presidium, Andrei Gromyko