user: Question: Which Grid has a Time of +13.999?
Columns: ['Rider', 'Bike', 'Laps', 'Time', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Troy Bayliss', 'Ducati 1098 F08', 22.0, '36:46.238', 1.0]
SQL:

assistant: SELECT "Grid" FROM "Table" WHERE "Time" = '+13.999';