user: Question: The Dijon-Prenois had how many fastest laps?
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', '9 January', 'Buenos Aires', 'James Hunt', 'James Hunt', 'Jody Scheckter', 'Wolf - Ford', 'Report']
SQL:

assistant: SELECT COUNT("Fastest Lap") FROM "Table" WHERE "Location" = 'Dijon-Prenois';