What the grid number of Sandro Cortese has Aprilia as the manufacturer laps one , and less than 19?
Rider Manufacturer Laps Time/Retired Grid
2007 Malaysian motorcycle Grand Prix
13913978
text text real text real
2-13913978-3
125cc classification
125cc classification
Gábor Talmácsi Aprilia 19 42:50.831 2
Tomoyoshi Koyama KTM 19 +6.753 6
Héctor Faubel Aprilia 19 +7.793 1
Joan Olivé Aprilia 19 +8.180 8
Sergio Gadea Aprilia 19 +8.947 11
Lukáš Pešek Derbi 19 +9.935 7
Simone Corsi Aprilia 19 +10.132 5
Mattia Pasini Aprilia 19 +10.335 10
Bradley Smith Honda 19 +23.426 15
Alexis Masbou Honda 19 +24.808 12
Nicolás Terol Derbi 19 +24.909 13
Pablo Nieto Aprilia 19 +26.194 9
Stefan Bradl Aprilia 19 +29.490 19
Mike Di Meglio Honda 19 +29.775 18
Esteve Rabat Honda 19 +31.011 17
Stefano Bianco Aprilia 19 +35.455 24
Randy Krummenacher KTM 19 +35.829 23
Andrea Iannone Aprilia 19 +54.666 21
Lorenzo Zanetti Aprilia 19 +56.956 26
Simone Grotzkyj Aprilia 19 +57.356 30
Roberto Tamburini Aprilia 19 +1:05.426 20
Danny Webb Honda 19 +1:08.541 25
Robert Muresan Derbi 19 +1:08.549 31
Joey Litjens Honda 19 +1:19.477 27
Cyril Carrillo Honda 19 +1:22.382 29
Stevie Bonsey KTM 19 +1:30.374 28
Ferruccio Lamborghini Aprilia 19 +1:33.736 33
Raffaele de Rosa Aprilia 19 +1:41.013 14
Dino Lombardi Honda 18 Retirement 32
Sandro Cortese Aprilia 18 Retirement 3
Pol Espargaró Aprilia 15 Accident 4
Dominique Aegerter Aprilia 5 Retirement 22
Michael Ranseder Derbi 0 Accident 16
SELECT SUM Grid FROM table WHERE Manufacturer = aprilia AND Laps < 19 AND Rider = sandro cortese
aprilia 19 sandro cortese