what is the league when the fa cup is qr4 and the fa trophy is qf?
CREATE TABLE "league_standings" (
  "year" text,
  "league" text,
  "position" text,
  "leading_scorer" text,
  "fa_cup" text,
  "fa_trophy" text
);
SELECT "league" FROM "league_standings" WHERE "fa_cup"='qr4' AND "fa_trophy"='qf';