user: Question: Which rider has time of +19.751?
Columns: ['Rider', 'Manufacturer', 'Laps', 'Time', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Marco Simoncelli', 'Gilera', 21.0, '40:19.910', 3.0]
SQL:

assistant: SELECT "Rider" FROM "Table" WHERE "Time" = '+19.751';