CREATE TABLE table_10325 ("Driver" TEXT, "Constructor" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

Who constructed stefan johansson's car with a grid under 14?
SELECT "Constructor" FROM table_10325 WHERE "Grid" < '14' AND "Driver" = 'stefan johansson'
SELECT "Constructor" FROM "table_10325" WHERE "Driver" = 'stefan johansson' AND "Grid" < '14'