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Between 1715 and 1724 , the Conseil d'Etat of King Louis XV began discussing the idea of a new fountain in the Faubourg Saint-Germain area , which was rapidly growing .
 Louis XV
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Louis XV