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From 1985 till 1993 , he was head of the Service d'exploitation de la formation aéronautique '' .
 Service d'exploitation de la formation aéronautique
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Service d'exploitation de la formation aéronautique