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

### Instruction:
What is Circuit, when Team is "R.J.MacArthur Onslow", and when City / State is "Sydney , New South Wales"?

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

### Response:
SELECT Circuit FROM table WHERE Team = r.j.macarthur onslow AND City / State = sydney , new south wales