10686
420 Air Refueling , Fighter-Bomber : attached 18 March 1954 – 22 September 1955
 420 Air Refueling , Fighter-Bomber
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 420 Air Refueling , Fighter-Bomber