What is the lowest against of the wimmera fl warrack eagles, which have less than 16 wins?
CREATE TABLE "2011_ladder" (
  "wimmera_fl" text,
  "wins" real,
  "byes" real,
  "losses" real,
  "draws" real,
  "against" real
);
SELECT MIN("against") FROM "2011_ladder" WHERE "wins"<16 AND "wimmera_fl"='warrack eagles';