user: Question: Who was the race winner with a pole position James Hunt, and a Fastest Lap of James Hunt, and a Date of 15 August?
Columns: ['Race', 'Date', 'Location', 'Pole Position', 'Fastest Lap', 'Race Winner', 'Constructor', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Brazilian Grand Prix', '25 January', 'Interlagos', 'James Hunt', 'Jean-Pierre Jarier', 'Niki Lauda', 'Ferrari', 'Report']
SQL:

assistant: SELECT "Race Winner" FROM "Table" WHERE "Pole Position" = 'James Hunt' AND "Fastest Lap" = 'James Hunt' AND "Date" = '15 August';