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Waldemar Kazanecki ( ; born 29 April 1929 in Warsaw , Poland , died 20 December 1991 in Warsaw ) was a Polish pianist , conductor and composer .
 Waldemar Kazanecki, Warsaw, Poland, Warsaw
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Waldemar Kazanecki, Warsaw, Poland, Warsaw