91
The TVA Office of the Inspector General 's report , " Inspection 2008 - 12283 - 02 , Review of the Kingston Fossil Plant Ash Spill Cause Study and Observations About Ash Management , " concluded that TVA culture had contributed to the spill .
 TVA, TVA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 TVA, TVA