What is the county that produces the most wines scoring higher than 90?
SELECT T1.County FROM APPELLATIONS AS T1 JOIN WINE AS T2 ON T1.Appelation  =  T2.Appelation WHERE T2.Score  >  90 GROUP BY T1.County ORDER BY count(*) DESC LIMIT 1
SELECT T1.County FROM APPELLATIONS AS T1 JOIN WINE AS T2 ON T1.Appelation  =  T2.Appelation WHERE T2.Score  >  90 GROUP BY T1.County ORDER BY count(*) DESC LIMIT 1
[{'County': 'Sonoma'}]