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Robert Spencer Carr ( March 26 , 1909 – April 28 , 1994 ) was an American writer of science fiction and fantasy .
 person: Spencer Carr
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: Spencer Carr 
Answer:
 person: Spencer Carr