user: Question: Who won the Brands Hatch circuit?
Columns: ['Race Name', 'Circuit', 'Date', 'Winning driver', 'Constructor', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['VII Race of Champions', 'Brands Hatch', '19 March', 'Emerson Fittipaldi', 'Lotus', 'Report']
SQL:

assistant: SELECT "Winning driver" FROM "Table" WHERE "Circuit" = 'Brands Hatch';