384405
The 593d SB operated three CMRE Retrograde Sort Yards ( RSY ) at different strategic airfields ( Kandahar , Bagram , and Camp John Pratt ) and facilitated 220 base closures and transfers .
 593d, Kandahar, Bagram
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 593d, Kandahar, Bagram