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The 872-day , prolonged military operation , The Siege of Leningrad , Russia , resulting from the failure of the German Army Group North to capture Leningrad in the Eastern Front of World War II , between September 8 1941 and January 27 1944 , was one of the longest and most destructive sieges in history , causing considerable devastation to the city of Leningrad ( now Saint Petersburg ) .
 location: Leningrad; location: Leningrad; location: Leningrad; location: Saint Petersburg
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: Leningrad, Leningrad, Leningrad, Saint Petersburg 
Answer:
 location: Leningrad; location: Leningrad; location: Leningrad; location: Saint Petersburg