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Father Sergei Grum-Grzymajlo ( Polish : Sergiusz Grum-Grzymajło , born in 1866 , Saint Petersburg , Russian Empire - died in 1945 ) was a Russian Catholic priest .
 Saint Petersburg, Russian Empire
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Saint Petersburg, Russian Empire