194898
In May 1945 after the World War II , Brigadier General Sir George Armytage — Military Governor of Hamburg — appointed Petersen mayor of Hamburg .
 Hamburg, Petersen, Hamburg
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hamburg, Petersen, Hamburg