Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Rider | Manufacturer | Laps | Time/Retired | Grid |
| --- | --- | --- | --- | --- |
| Gábor Talmácsi | Aprilia | 19.0 | 42:50.831 | 2.0 |
| Tomoyoshi Koyama | KTM | 19.0 | +6.753 | 6.0 |
| Héctor Faubel | Aprilia | 19.0 | +7.793 | 1.0 |
| Joan Olivé | Aprilia | 19.0 | +8.180 | 8.0 |
| Sergio Gadea | Aprilia | 19.0 | +8.947 | 11.0 |
| Lukáš Pešek | Derbi | 19.0 | +9.935 | 7.0 |
| Simone Corsi | Aprilia | 19.0 | +10.132 | 5.0 |
| Mattia Pasini | Aprilia | 19.0 | +10.335 | 10.0 |
| Bradley Smith | Honda | 19.0 | +23.426 | 15.0 |
| Alexis Masbou | Honda | 19.0 | +24.808 | 12.0 |
| Nicolás Terol | Derbi | 19.0 | +24.909 | 13.0 |
| Pablo Nieto | Aprilia | 19.0 | +26.194 | 9.0 |
| Stefan Bradl | Aprilia | 19.0 | +29.490 | 19.0 |
| Mike Di Meglio | Honda | 19.0 | +29.775 | 18.0 |
| Esteve Rabat | Honda | 19.0 | +31.011 | 17.0 |
| Stefano Bianco | Aprilia | 19.0 | +35.455 | 24.0 |
| Randy Krummenacher | KTM | 19.0 | +35.829 | 23.0 |
| Andrea Iannone | Aprilia | 19.0 | +54.666 | 21.0 |
| Lorenzo Zanetti | Aprilia | 19.0 | +56.956 | 26.0 |
| Simone Grotzkyj | Aprilia | 19.0 | +57.356 | 30.0 |
| Roberto Tamburini | Aprilia | 19.0 | +1:05.426 | 20.0 |
| Danny Webb | Honda | 19.0 | +1:08.541 | 25.0 |
| Robert Muresan | Derbi | 19.0 | +1:08.549 | 31.0 |
| Joey Litjens | Honda | 19.0 | +1:19.477 | 27.0 |
| Cyril Carrillo | Honda | 19.0 | +1:22.382 | 29.0 |
| Stevie Bonsey | KTM | 19.0 | +1:30.374 | 28.0 |
| Ferruccio Lamborghini | Aprilia | 19.0 | +1:33.736 | 33.0 |
| Raffaele de Rosa | Aprilia | 19.0 | +1:41.013 | 14.0 |
| Dino Lombardi | Honda | 18.0 | Retirement | 32.0 |
| Sandro Cortese | Aprilia | 18.0 | Retirement | 3.0 |
| Pol Espargaró | Aprilia | 15.0 | Accident | 4.0 |
| Dominique Aegerter | Aprilia | 5.0 | Retirement | 22.0 |
| Michael Ranseder | Derbi | 0.0 | Accident | 16.0 |
Question:
What is the grid number of Sandro Cortese, who has Aprilia as the manufacturer and less than 19 laps?
Answer:
3.0