202410
Retirement Daniel Ustian abruptly retired as President , Executive Chairman , and CEO of Navistar International on August 27 , 2012 .
 Daniel Ustian, Navistar
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Daniel Ustian, Navistar