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Though the SPD in the western sectors - including Ostrowski himself - refused this union , he appointed SED members for the city council against strong resistance in his party and was finally voted out of office on 11 April 1947 .
 person: Ostrowski
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Ostrowski 
Answer:
 person: Ostrowski