What city has the home team of the brisbane broncos?
CREATE TABLE "former_or_demolished_stadiums" (
  "stadium" text,
  "capacity" real,
  "city" text,
  "country" text,
  "home_team_s" text,
  "closed_as_a_rl_stadium" real
);
SELECT "city" FROM "former_or_demolished_stadiums" WHERE "home_team_s"='brisbane broncos';