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Koneru Ranga Rao ( 26 July 1936 – 15 March 2010 ) was an Indian politician .
 Koneru Ranga Rao
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Koneru Ranga Rao