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In 2000 , the building housing the United States Air Force 's 20th Security Forces Squadron at Shaw Air Force Base , South Carolina was dedicated to Chestnut , a former member of the Air Force Security Forces .
 United States Air Force, South Carolina, Chestnut
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 United States Air Force, South Carolina, Chestnut