CREATE TABLE "scottish_cup" (
  "date" text,
  "round" text,
  "opponent" text,
  "venue" text,
  "result" text,
  "attendance" real
);

Question: what is the date when the round is sf?
SQL: SELECT "date" FROM "scottish_cup" WHERE "round"='sf';

Question: what is the date when the round is qf?
SQL: SELECT "date" FROM "scottish_cup" WHERE "round"='qf';