user: Question: Who did the fastest lap at Watkins Glen?
Columns: ['Rnd', 'Race', 'Date', 'Location', 'Pole Position', 'Fastest Lap', 'Race Winner', 'Constructor', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Argentine Grand Prix', '15 January', 'Buenos Aires', 'Mario Andretti', 'Gilles Villeneuve', 'Mario Andretti', 'Lotus - Ford', 'Report']
SQL:

assistant: SELECT "Fastest Lap" FROM "Table" WHERE "Location" = 'Watkins Glen';