CREATE TABLE table_name_47 (time VARCHAR, laps VARCHAR, manufacturer VARCHAR, grid VARCHAR)

How long did it take for the rider of a Yamaha with a grid less than 8 and laps less than 23?
SELECT time FROM table_name_47 WHERE manufacturer = "yamaha" AND grid < 8 AND laps < 23
SELECT "time" FROM "table_name_47" WHERE "grid" < 8 AND "laps" < 23 AND "manufacturer" = "yamaha"