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Emsland is the name of a region on the Ems River in western Lower Saxony and northern North Rhine-Westphalia .
 Lower Saxony, North Rhine-Westphalia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Lower Saxony, North Rhine-Westphalia