What is the lowest value for Draws, when Losses is "0", and when Byes is greater than 4?
CREATE TABLE "2008_ladder_and_finals" (
  "benalla_dfl" text,
  "wins" real,
  "losses" real,
  "draws" real,
  "byes" real,
  "against" real
);
SELECT MIN("draws") FROM "2008_ladder_and_finals" WHERE "losses"=0 AND "byes">4;