What is the lowest number of cf wins of the chicago blackhawks, which has more than 4 cf appearances, a last cf in 2013, and more than 2 cup wins?
CREATE TABLE "team_totals" (
  "team" text,
  "cf_appearances" real,
  "cf_wins" real,
  "cup_wins" real,
  "last_cf" real
);
SELECT MIN("cf_wins") FROM "team_totals" WHERE "cf_appearances">4 AND "last_cf"=2013 AND "team"='chicago blackhawks' AND "cup_wins">2;