CREATE TABLE table_66005 ("Rank" TEXT, "Nation" TEXT, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

What is the sum of the gold medals of the nation with 4 silvers and more than 6 total medals?
SELECT SUM("Gold") FROM table_66005 WHERE "Silver" = '4' AND "Total" > '6'
SELECT SUM("Gold") FROM "table_66005" WHERE "Silver" = '4' AND "Total" > '6'