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Klaus Mitffoch was a Polish rock group founded in 1979 in Wrocław by Lech Janerka , Krzysztof Pociecha and Kazimierz Sycz .
 Polish, Wrocław, Lech Janerka
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Polish, Wrocław, Lech Janerka