CREATE TABLE grapes (id NUMBER, grape CLOB, color CLOB)
CREATE TABLE wine (no NUMBER, grape CLOB, winery CLOB, appelation CLOB, state CLOB, name CLOB, year NUMBER, price NUMBER, score NUMBER, cases NUMBER, drink CLOB)
CREATE TABLE appellations (no NUMBER, appelation CLOB, county CLOB, state CLOB, area CLOB, isava CLOB)

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" "T1" JOIN "wine" "T2" ON "T1"."grape" = "T2"."grape" GROUP BY "T2"."grape" ORDER BY AVG("price") DESC FETCH FIRST 1 ROWS ONLY