SELECT T1.Color FROM GRAPES AS T1 JOIN WINE AS T2 ON T1.Grape  =  T2.Grape GROUP BY T2.Grape ORDER BY AVG(Price) DESC LIMIT 1
What is the color of the grape whose wine products has the highest average price?
SELECT T1.Color FROM GRAPES AS T1 JOIN WINE AS T2 ON T1.Grape = T2.Grape GROUP BY T2.Grape ORDER BY AVG ( Price ) DESC LIMIT 1
select t1 . color from grapes as t1 join wine as t2 on t1 . grape = t2 . grape group by t2 . grape order by avg ( price ) desc limit value
What is the color of the grape whose wine products has the highest average price ?