CREATE TABLE table_54979 ("Driver" TEXT, "Constructor" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

How many laps for robin montgomerie-charrington, and a Grid smaller than 15?
SELECT COUNT("Laps") FROM table_54979 WHERE "Driver" = 'robin montgomerie-charrington' AND "Grid" < '15'
SELECT COUNT("Laps") FROM "table_54979" WHERE "Driver" = 'robin montgomerie-charrington' AND "Grid" < '15'