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Although Togo is the NDLF 's most notorious member he was killed on July 19 , 2011 by a Nigerian air strike near Warri in Delta State .
 Nigerian, Warri, Delta State
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nigerian, Warri, Delta State