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Na Khun Yai ( ) is a subdistrict ( tambon ) in the Nakhon Phanom province , administrated by Na Wa district in northeastern Thailand ( Isaan ) .
 Na, Nakhon Phanom province, Na Wa district, Thailand, Isaan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Na, Nakhon Phanom province, Na Wa district, Thailand, Isaan