What is the highest Grid with a time of +1:19.905, and less than 20 laps?
CREATE TABLE "250cc_classification" (
  "rider" text,
  "manufacturer" text,
  "laps" real,
  "time" text,
  "grid" real
);
SELECT MAX("grid") FROM "250cc_classification" WHERE "time"='+1:19.905' AND "laps"<20;