Table: atcc_1991
Columns: race_title
circuit
city_state
date
winner
team

Question: Who won at the Barbagallo Raceway circuit?
SQL: SELECT "winner" FROM atcc_1991 WHERE "circuit" = 'barbagallo raceway'

Question: What was the title of the race at Oran Park Raceway?
SQL: SELECT "race_title" FROM atcc_1991 WHERE "circuit" = 'oran park raceway'

Question: Who won at the Oran Park Raceway?
SQL: SELECT "winner" FROM atcc_1991 WHERE "circuit" = 'oran park raceway'

Question: When Jim Richards won at the Winton Motor Raceway circuit, what was the city and state listed?
SQL: SELECT "city_state" FROM atcc_1991 WHERE "winner" = 'jim richards' AND "circuit" = 'winton motor raceway'