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Additionally , Friedeberg served as a member of the city council of Berlin from 1901 ( or 1902 according to some sources ) to 1904 making him a top SPD leader in Germany 's capital .
 Friedeberg, Berlin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Friedeberg, Berlin