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MAC Chief of Staff was American Brigadier General Howard A. Craig who was schooled in desert warfare army-air operations by both Tedder and Field Marshal Bernard Montgomery .
 Tedder, Field Marshal Bernard Montgomery
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tedder, Field Marshal Bernard Montgomery