user: Question: Which rider had a time/retired od +19.909?
Columns: ['Rider', 'Manufacturer', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Valentino Rossi', 'Yamaha', '21', '43:07.829', '1']
SQL:

assistant: SELECT "Rider" FROM "Table" WHERE "Time/Retired" = '+19.909';