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Political career Platzeck represented ARGUS , a Potsdam environmental organization he had co-founded with and at the initiative of Carola Stabe , at the founding of the Grüne Liga association of local environmental organizations in East Germany in 1989 .
 person: Platzeck; location: Potsdam; location: East Germany
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: Platzeck, Potsdam, East Germany 
Answer:
 person: Platzeck; location: Potsdam; location: East Germany