user: Question: Tell me the circuit for 20 August
Columns: ['Name', 'Circuit', 'Date', 'Winning driver', 'Winning constructor', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Pau Grand Prix', 'Pau', '19 February', 'Marcel Lehoux', 'Bugatti', 'Report']
SQL:

assistant: SELECT "Circuit" FROM "Table" WHERE "Date" = '20 August';