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He is especially known from his responsa work Nefesh Haya , and as the president of Kupat Rabbi Meir Baal HaNes Kollel Polen , Warsaw region .
 person: Meir; location: Warsaw
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:
 person: Meir; location: Warsaw