Which rider had more than 23 laps, a manufacturer of Aprilia, and a grid of 14
CREATE TABLE "250cc_classification" (
  "rider" text,
  "manufacturer" text,
  "laps" real,
  "time_retired" text,
  "grid" real
);
SELECT "rider" FROM "250cc_classification" WHERE "laps">23 AND "manufacturer"='aprilia' AND "grid"=14;