Table:
text: 2008 Qatar motorcycle Grand Prix
250cc classification
250cc classification
Rider Manufacturer Laps Time_Retired Grid
Doni Tata Pradita Yamaha 20 +2:05.461 23
Alex Baldolini Aprilia 14 Retirement 17
Lukas Pesek Aprilia 12 Retirement 16
Marco Simoncelli Gilera 7 Retirement 6
Imre Toth Aprilia 4 Retirement 22
Manuel Hernandez Aprilia 0 Retirement 21
Eugene Laverty Aprilia 0 Retirement 20

text: 2008 Qatar motorcycle Grand Prix
250cc classification
250cc classification
Rider Manufacturer Laps Time_Retired Grid
Mattia Pasini Aprilia 20 40:16.202 5
Hector Barbera Aprilia 20 +0.557 2
Mika Kallio KTM 20 +1.029 4
Alex Debon Aprilia 20 +1.418 1
Yuki Takahashi Honda 20 +12.944 7
Alvaro Bautista Aprilia 20 +14.480 3
Karel Abraham Aprilia 20 +16.721 11
Roberto Locatelli Gilera 20 +18.987 9
Aleix Espargaro Aprilia 20 +32.232 8
Hector Faubel Aprilia 20 +41.102 15
Julian Simon KTM 20 +41.457 14
Fabrizio Lai Gilera 20 +41.694 13
Ratthapark Wilairot Honda 20 +43.192 19
Manuel Poggiali Gilera 20 +44.228 18
Thomas Luthi Aprilia 20 +48.760 10
Hiroshi Aoyama KTM 20 +1:11.031 12

Question: What type of manufacturer has laps less than 20 and a grid of 21 for the 2008 Qatar 250cc motorcycle Grand Prix classification?