instruction: A bar chart for what are the number of the wines that have prices lower than 50 and have appelations in Monterey county?, I want to sort by the Y in descending please.
response: SELECT Name, COUNT(Name) FROM appellations AS T1 JOIN wine AS T2 ON T1.Appelation = T2.Appelation WHERE T1.County = "Monterey" AND T2.Price < 50 GROUP BY Name ORDER BY COUNT(Name) DESC