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Bertram E. " Bert " Cook ( April 26 , 1929 – November 24 , 1998 ) was an American professional basketball player .
 person: Bert; person: Cook
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: Bert, Cook 
Answer:
 person: Bert; person: Cook