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The region between Bremen ( Weser ) , Hamburg ( Elbe ) and Cuxhaven ( estuary on the North Sea ) forms the Elbe-Weser Triangle ( ) in northern Germany .
 Bremen, Hamburg, Cuxhaven
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bremen, Hamburg, Cuxhaven