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He played an active role at the U.N. social development conference in Copenhagen last year and has co-authored articles with U.N. development programme officer Inge Kaul .
 location: Copenhagen; organization: U.N.; person: Inge Kaul; organization: U.N.
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 location: Copenhagen; organization: U.N.; person: Inge Kaul; organization: U.N.