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Gherasim Rudi was the prime minister of Moldavian SSR ( 5 January 1946 – 23 January 1958 ) ; until April 4 , the name was Chairmen of the Council of People 's Commissars .
 person: Gherasim Rudi
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: Gherasim Rudi 
Answer:
 person: Gherasim Rudi