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He wrote a number of books about popular science and history , and for many years he was part of the staff of Dagens Nyheter , where he published short poems about current events or other topics .
 organization: Dagens Nyheter
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Dagens Nyheter 
Answer:
 organization: Dagens Nyheter