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He has played 28 games for the Danish under-21 national team , and was selected for the 2006 European Under-21 Championship .
 organization: Danish under-21 national team
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Danish under-21 national team