Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_20 (city___state VARCHAR, winner VARCHAR, circuit VARCHAR)
### Question:
What is City / State, when Winner is "Rohan Onslow", and when Circuit is "Oran Park Raceway"?
### Answer:
SELECT city___state FROM table_name_20 WHERE winner = "rohan onslow" AND circuit = "oran park raceway"