Please name the highest Conceded which has a Played smaller than 5?
CREATE TABLE "pre_libertadores_playoff" (
  "position" real,
  "team" text,
  "played" real,
  "wins" real,
  "draws" real,
  "losses" real,
  "scored" real,
  "conceded" real,
  "bonus_points" text,
  "points" real
);
SELECT MAX("conceded") FROM "pre_libertadores_playoff" WHERE "played"<5;