CREATE TABLE table_47256 ("Position" FLOAT, "Club" TEXT, "Played" FLOAT, "Points" FLOAT, "Wins" FLOAT, "Draws" FLOAT, "Losses" FLOAT, "Goals for" FLOAT, "Goals against" FLOAT, "Goal Difference" FLOAT)

What is the highest Goal Difference when the goals against were less than 76, and the position larger than 5, and a Played larger than 30?
SELECT MAX("Goal Difference") FROM table_47256 WHERE "Goals against" < '76' AND "Position" > '5' AND "Played" > '30'
SELECT MAX("Goal Difference") FROM "table_47256" WHERE "Goals against" < '76' AND "Played" > '30' AND "Position" > '5'