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Bangladesh is also the first South Asian nation to ratify the Comprehensive Test Ban Treaty .
 Bangladesh, the first South Asian nation to ratify the Comprehensive Test Ban Treaty, South Asian
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 Bangladesh, the first South Asian nation to ratify the Comprehensive Test Ban Treaty, South Asian