What is the largest laps for Time/Retired of + 2 laps, and a Grid of 13?
CREATE TABLE "race" (
  "driver" text,
  "constructor" text,
  "laps" real,
  "time_retired" text,
  "grid" real
);
SELECT MAX("laps") FROM "race" WHERE "time_retired"='+ 2 laps' AND "grid"=13;