Table:
text: 2002 South African motorcycle Grand Prix
MotoGP classification
MotoGP classification
Rider Manufacturer Laps Time_Retired Grid
Tohru Ukawa Honda 28 44:39.467 3
Valentino Rossi Honda 28 +0.932 1
Loris Capirossi Honda 28 +8.259 2
Daijiro Kato Honda 28 +26.962 14
Carlos Checa Yamaha 28 +27.227 7
Olivier Jacque Yamaha 28 +27.889 9
Norifumi Abe Yamaha 28 +30.215 15
Shinya Nakano Yamaha 28 +30.781 8
Max Biaggi Yamaha 28 +43.796 4
Garry McCoy Yamaha 28 +45.501 5
Jurgen vd Goorbergh Honda 28 +1:06.938 12
Tetsuya Harada Honda 28 +1:19.560 19
Pere Riba Yamaha 28 +1:19.857 20
John Hopkins Yamaha 28 +1:31.519 17
Régis Laconi Aprilia 28 +1:32.725 18
Sete Gibernau Suzuki 27 +1 lap 10

Question: How many laps did Pere Riba complete during the 2002 MotoGP Classification South African Motorcycle Grand Prix?

Question: How many laps was in grid 4 of the 2002 South African motorcycle Grand Prix in the MotoGP classification?