CREATE TABLE table_10484 ("Driver" TEXT, "Constructor" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

What is the grid total for alain prost with over 14 laps?
SELECT SUM("Grid") FROM table_10484 WHERE "Laps" > '14' AND "Driver" = 'alain prost'
SELECT SUM("Grid") FROM "table_10484" WHERE "Driver" = 'alain prost' AND "Laps" > '14'