user: Question: What is the Rider, when Grid is less than 16, when Manufacturer is Aprilia, and when Time is +28.288?
Columns: ['Rider', 'Manufacturer', 'Laps', 'Time', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Alvaro Bautista', 'Aprilia', 26.0, '44:34.257', 2.0]
SQL:

assistant: SELECT "Rider" FROM "Table" WHERE "Grid" < 16.0 AND "Manufacturer" = 'Aprilia' AND "Time" = '+28.288';