user: Question: Name the driver for race time being 2:34:21
Columns: ['Year', 'Date', 'Driver', 'Team', 'Manufacturer', 'Laps', 'Miles (km)', 'Race time', 'Average speed (mph)', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1969.0, 'June 15', 'Cale Yarborough', 'Wood Brothers Racing', 'Mercury', '250', '500 (804.672)', '3:35:26', '139.254', 'Report']
SQL:

assistant: SELECT "Driver" FROM "Table" WHERE "Race time" = '2:34:21';