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The band began recording the album in January 2009 in studios across Copenhagen and Århus , Denmark , and mixed the album with producer Gareth Jones .
 Copenhagen, Århus, Denmark, Gareth Jones
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Copenhagen, Århus, Denmark, Gareth Jones