user: Question: What city was the circuit of Mallala Motor Sport Park?
Columns: ['Race Title', 'Circuit', 'City / State', 'Date', 'Winner']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Mallala', 'Mallala Motor Sport Park', 'Adelaide , South Australia', '17–18 May', 'Luke Youlden']
SQL:

assistant: SELECT "City / State" FROM "Table" WHERE "Circuit" = 'Mallala Motor Sport Park';