CREATE TABLE "home_attendance" (
  "date" text,
  "round" text,
  "attendance" text,
  "opposition" text,
  "stadium" text
);

Question: Who's the opposition at westpac stadium when the attendance is 31,853?
SQL: SELECT "opposition" FROM "home_attendance" WHERE "stadium"='westpac stadium' AND "attendance"='31,853';

Question: When was the opposition sydney fc on round 19?
SQL: SELECT "date" FROM "home_attendance" WHERE "opposition"='sydney fc' AND "round"='round 19';

Question: What round was adelaide united the opposition with an attendance of 18,345?
SQL: SELECT "round" FROM "home_attendance" WHERE "opposition"='adelaide united' AND "attendance"='18,345';

Question: Who was the opposition at 11,682 excl. exhibition match?
SQL: SELECT "opposition" FROM "home_attendance" WHERE "stadium"='11,682 excl. exhibition match';

Question: What round has an attendance of 12,127?
SQL: SELECT "round" FROM "home_attendance" WHERE "attendance"='12,127';