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Ettore Mazzoleni ( 18 June 1905 - 1 June 1968 ) was a Canadian conductor , music educator , writer , and arts administrator of Swiss birth .
 Ettore Mazzoleni, Swiss
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ettore Mazzoleni, Swiss