What is the highest draws when more than 6 are played and the points against are 54?
CREATE TABLE "australasia_pool_a" (
  "club" text,
  "played" real,
  "lost" real,
  "drawn" real,
  "against" real,
  "diff" real,
  "points" real
);
SELECT MAX("drawn") FROM "australasia_pool_a" WHERE "against"=54 AND "played">6;