What season had a combined of 13 and a Giant Slalom more than 31?
CREATE TABLE "season_standings" (
  "season" real,
  "overall" real,
  "slalom" text,
  "giant_slalom" real,
  "super_g" text,
  "downhill" text,
  "combined" text
);
SELECT MAX("season") FROM "season_standings" WHERE "combined"='13' AND "giant_slalom">31;