When the wallington new foresters are in division four what is the season?
CREATE TABLE "recent_champions" (
  "season" text,
  "premier_division" text,
  "division_one" text,
  "division_two" text,
  "division_three" text,
  "division_four" text,
  "division_five" text
);
SELECT "season" FROM "recent_champions" WHERE "division_four"='Wallington New Foresters';