CREATE TABLE table_55514 ("Driver" TEXT, "Constructor" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

who is the constructor when the grid is more than 23 and the driver is piercarlo ghinzani?
SELECT "Constructor" FROM table_55514 WHERE "Grid" > '23' AND "Driver" = 'piercarlo ghinzani'
SELECT "Constructor" FROM "table_55514" WHERE "Driver" = 'piercarlo ghinzani' AND "Grid" > '23'