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Dr. Nayak ’s maternal family is from the Sambalpur District of Orissa , settling there after having moved across Bengal and Bihar in search of land and livelihood , while avoiding caste-based discrimination .
 Nayak ’s, Sambalpur District, Orissa, Bihar
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nayak ’s, Sambalpur District, Orissa, Bihar