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The Constantinople flotilla was an Imperial German Navy formation set up to prosecute the U-boat campaign against Allied shipping in the Mediterranean and the Black Sea in support of Germany ’s ally , the Ottoman Empire .
 organization: Imperial German Navy; location: Ottoman Empire
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: Imperial German Navy, Ottoman Empire 
Answer:
 organization: Imperial German Navy; location: Ottoman Empire