cars_for_sale
	 car
		 id = 1
		 brand = Ford
		 model = Mustang
		 production_year = 1972
		 price{'currency': 'USD'} = 35900
	 car
		 id = 2
		 brand = Aston Martin
		 model = Rapide
		 production_year = 2010
		 price{'currency': 'GBP'} = 32000