Which Result has a Competition of world cup qualifying, and a Date of march 21, 1954?
CREATE TABLE "brazil_national_team" (
  "date" text,
  "result" text,
  "score" text,
  "brazil_scorers" text,
  "competition" text
);
SELECT "result" FROM "brazil_national_team" WHERE "competition"='world cup qualifying' AND "date"='march 21, 1954';