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The resident orchestra was active there until the Nazi-Soviet invasion of Poland , with the last performance held on May 21 , 1939 , under the direction of Bronisław Wolfstahl .
 location: Poland
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Poland