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From February 1977 to April 1982 , Vinogradov was the ambassador of the USSR in Iran .
 person: Vinogradov; location: USSR; location: Iran
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: Vinogradov, USSR, Iran 
Answer:
 person: Vinogradov; location: USSR; location: Iran