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 | Grid |
| --- | --- | --- | --- | --- |
| Gábor Talmácsi | Aprilia | 23.0 | 40:03.679 | 1.0 |
| Bradley Smith | Aprilia | 23.0 | +5.402 | 2.0 |
| Simone Corsi | Aprilia | 23.0 | +14.388 | 5.0 |
| Marc Márquez | KTM | 23.0 | +17.058 | 8.0 |
| Nicolás Terol | Aprilia | 23.0 | +17.321 | 9.0 |
| Andrea Iannone | Aprilia | 23.0 | +17.482 | 13.0 |
| Sandro Cortese | Aprilia | 23.0 | +17.485 | 7.0 |
| Dominique Aegerter | Derbi | 23.0 | +18.657 | 14.0 |
| Esteve Rabat | KTM | 23.0 | +19.148 | 19.0 |
| Sergio Gadea | Aprilia | 23.0 | +34.650 | 12.0 |
| Efrén Vázquez | Aprilia | 23.0 | +34.855 | 18.0 |
| Joan Olivé | Derbi | 23.0 | +39.394 | 10.0 |
| Michael Ranseder | Aprilia | 23.0 | +47.304 | 21.0 |
| Danny Webb | Aprilia | 23.0 | +53.241 | 20.0 |
| Jonas Folger | Aprilia | 23.0 | +53.349 | 28.0 |
| Jules Cluzel | Loncin | 23.0 | +1:01.903 | 24.0 |
| Marco Ravaioli | Aprilia | 23.0 | +1:04.165 | 32.0 |
| Tomoyoshi Koyama | KTM | 23.0 | +1:06.235 | 22.0 |
| Takaaki Nakagami | Aprilia | 23.0 | +1:06.260 | 25.0 |
| Robin Lasser | Aprilia | 23.0 | +1:07.200 | 27.0 |
| Gabriele Ferro | Honda | 23.0 | +1:21.814 | 31.0 |
| Bastien Chesaux | Aprilia | 23.0 | +1:22.521 | 38.0 |
| Louis Rossi | Honda | 23.0 | +1:35.247 | 33.0 |
| Hugo Van Den Berg | Aprilia | 23.0 | +1:39.723 | 39.0 |
| Luca Vitali | Aprilia | 22.0 | +1 Lap | 36.0 |
| Randy Krummenacher | KTM | 21.0 | +2 Laps | 37.0 |
| Mike Di Meglio | Derbi | 14.0 | Accident | 6.0 |
| Stefan Bradl | Aprilia | 14.0 | Retirement | 11.0 |
| Lorenzo Zanetti | KTM | 14.0 | Retirement | 26.0 |
| Pol Espargaró | Derbi | 12.0 | Retirement | 3.0 |
| Lorenzo Savadori | Aprilia | 12.0 | Retirement | 23.0 |
| Raffaele De Rosa | KTM | 10.0 | Retirement | 15.0 |
| Alexis Masbou | Loncin | 6.0 | Retirement | 29.0 |
| Gennaro Sabatino | Aprilia | 6.0 | Retirement | 30.0 |
| Pablo Nieto | KTM | 4.0 | Retirement | 34.0 |
| Steve Bonsey | Aprilia | 3.0 | Retirement | 17.0 |
| Scott Redding | Aprilia | 1.0 | Accident | 4.0 |
| Adrián Martín | Aprilia | 0.0 | Accident | 35.0 |
| Riccardo Moretti | Honda | 0.0 | Accident | 16.0 |
Question:
Can you tell me the sum of Grid that has the Manufacturer of aprilia, and the sandro cortese?
Answer:
7.0