CREATE TABLE "calendar" (
  "event_circuit" text,
  "city_state" text,
  "date" text,
  "format" text,
  "winner" text,
  "team" text
);

Question: what is the date of barbagallo raceway?
SQL: SELECT "date" FROM "calendar" WHERE "event_circuit"='barbagallo raceway';

Question: What city is the hidden valley raceway in?
SQL: SELECT "city_state" FROM "calendar" WHERE "event_circuit"='hidden valley raceway';