CREATE TABLE table_76653 ("Rider" TEXT, "Manufacturer" TEXT, "Laps" TEXT, "Time/Retired" TEXT, "Grid" TEXT)

When rider John Hopkins had 21 laps, what was the grid?
SELECT "Grid" FROM table_76653 WHERE "Laps" = '21' AND "Rider" = 'john hopkins'
SELECT "Grid" FROM "table_76653" WHERE "Laps" = '21' AND "Rider" = 'john hopkins'