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Semion Yakovlevich Braude ( ; January 20 , 1911 – July 1 , 2003 ) was a Ukrainian physicist and radio astronomer .
 person: Semion; person: Braude
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: Semion; person: Braude