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Nahri Saraj District ( ) ( population 166,827 ) , also called Nahre Saraj , is a district in Helmand Province , Southern Afghanistan .
 Helmand Province, Afghanistan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Helmand Province, Afghanistan