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After serving in the United States Army Air Forces in World War II in England , he returned to the Canton , Ohio - area near Minerva in 1946 , and began work first as a janitor and later as a security guard for the Timken bearing and steel company .
 United States Army Air Forces, England, Canton , Ohio, Minerva
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 United States Army Air Forces, England, Canton , Ohio, Minerva