Table:
text: 2002 Catalan motorcycle Grand Prix
125 cc classification
125 cc classification
Pos Rider Manufacturer Laps Time_Retired Grid Points_
Ret Youichi Ui Derbi 13 Accident 6 
Ret Alex de Angelis Aprilia 13 Accident 12 
Ret Ángel Rodríguez Aprilia 4 Retirement 25 
Ret Gino Borsoi Aprilia 0 Accident 9 
Ret Andrea Dovizioso Honda 0 Accident 14 
Ret Alessandro Brannetti Honda 0 Accident 30 
Ret Álvaro Bautista Aprilia 0 Accident 28 
DNQ Javier Machado Honda

Question: Who is the only rider with start number 6 in the standings at the 2002 Catalan Motorcycling Grand Prix?