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It now handles all of Nha Trang 's commercial flights , which previously headed to Nha Trang Airport .
 Nha Trang, Nha Trang
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nha Trang, Nha Trang