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The oldest surviving building in Kot Sarfraz is the Bunglow built in 1873 , by late Chaudhrial of Chakwal , Khan Bahadur , Raja Sahib , Chaudhry Aurangzeb Khan .
 Sarfraz, Chakwal, Khan, Raja, Khan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sarfraz, Chakwal, Khan, Raja, Khan