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Marsden is a former parliamentary electorate , in the Whangarei District and in the Northland Region of New Zealand .
 Whangarei District, Northland Region
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Whangarei District, Northland Region