What is the lowest Draws, when Against is "1547", and when Wins is greater than 3?
CREATE TABLE "2010_ladder" (
  "golden_rivers" text,
  "wins" real,
  "byes" real,
  "losses" real,
  "draws" real,
  "against" real
);
SELECT MIN("draws") FROM "2010_ladder" WHERE "against"=1547 AND "wins">3;