Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is City / State, when Winner is "Rohan Onslow", and when Circuit is "Oran Park Raceway"?

### Inputs:
table_name: table, columns: ['Circuit', 'City / State', 'Date', 'Winner', 'Team']

### Response:
SELECT City / State FROM table WHERE Winner = rohan onslow AND Circuit = oran park raceway