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It is situated by Kattegat , on the west coast of Sweden , and has a population of approximately 570,000 in the city proper and about 1 million inhabitants in the metropolitan area .
 Kattegat, Sweden
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kattegat, Sweden