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Ilhom Tuychievich Nematov ( , ) is an Uzbek diplomat and is the current Ambassador of Uzbekistan to the United States , presenting his credentials to US President Barack H. Obama on 27 February 2009 .
 person: Ilhom; person: Nematov; location: Uzbek; person: Barack H. Obama
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:
 person: Ilhom; person: Nematov; location: Uzbek; person: Barack H. Obama