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From 2006 to 2008 he was the Dutch representative at the World Bank , succeeding Ad Melkert .
 organization: World Bank; person: Ad Melkert
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: World Bank; person: Ad Melkert