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Luke Short ( real name Frederick Dilley Glidden November 19 , 1908 – August 18 , 1975 ) was a popular Western writer .
 person: Luke Short
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: Luke Short 
Answer:
 person: Luke Short