How many laps did the driver with the yamaha manufacturer go on grid 3?
CREATE TABLE "moto_gp_classification" (
  "rider" text,
  "manufacturer" text,
  "laps" real,
  "time" text,
  "grid" real
);
SELECT "laps" FROM "moto_gp_classification" WHERE "manufacturer"='yamaha' AND "grid"=3;