CREATE TABLE table_49538 ("Rider" TEXT, "Manufacturer" TEXT, "Laps" FLOAT, "Time" TEXT, "Grid" FLOAT)

If the manufacturer is Yamaha, and the laps driven were under 32, what's the average of all grid sizes with that criteria?
SELECT AVG("Grid") FROM table_49538 WHERE "Laps" < '32' AND "Manufacturer" = 'yamaha'
SELECT AVG("Grid") FROM "table_49538" WHERE "Laps" < '32' AND "Manufacturer" = 'yamaha'