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South Asia or Southern Asia or Indian Subcontinent is the south ern region of the Asia n continent , which comprises the sub-Himalayan countries and , for some authorities , also includes the adjoining countries to the west and the east .
 Asia, Asia, Indian Subcontinent, Asia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Asia, Asia, Indian Subcontinent, Asia