250679
They were based at RNAS Yeovilton and displayed at numerous RAF Airshows and Royal Navy Air Station Air Days during the 1968 season culminating in the SBAC Farnborough Airshow on 20th , 21st and 22nd September .
 RAF, SBAC
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 RAF, SBAC