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Russian President Boris Yeltsin visited his wife Naina in hospital on Friday evening , Interfax news agency quoted spokesman Sergei Yastrzhembsky as saying .
 person: Boris Yeltsin; person: Sergei Yastrzhembsky; organization: Interfax; else: Russian; person: Naina
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:
 person: Boris Yeltsin; person: Sergei Yastrzhembsky; organization: Interfax; else: Russian; person: Naina