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Pavol Hammel ( born December 7 , 1948 , Bratislava ) is a Slovak musician , singer and producer .
 Pavol Hammel, Bratislava, Slovak
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Pavol Hammel, Bratislava, Slovak