Table:
text: 1997 Giro d'Italia
Classification leadership
Classification leadership by stage
Stage Winner General_classification Points_classification Mountains_classification Intergiro_classification Trofeo_Fast_Team
1 Mario Cipollini Mario Cipollini Mario Cipollini not awarded Dimitri Konyshev Saeco
2 Mario Cipollini Mario Cipollini Mario Cipollini not awarded Dimitri Konyshev Saeco
3 Pavel Tonkov Pavel Tonkov Mario Cipollini Pavel Tonkov Dimitri Konyshev Mapei-GB
4 Mario Cipollini Pavel Tonkov Mario Cipollini Pavel Tonkov Dimitri Konyshev Mapei-GB
5 Pavel Tonkov Pavel Tonkov Mario Cipollini Pavel Tonkov Dimitri Konyshev Saeco
6 Roberto Sgambelluri Pavel Tonkov Mario Cipollini Pavel Tonkov Dimitri Konyshev Saeco
7 Marcel Wüst Pavel Tonkov Mario Cipollini Pavel Tonkov Dimitri Konyshev Saeco
8 Mario Manzoni Pavel Tonkov Mario Cipollini Mariano Piccoli Dimitri Konyshev Asics-C.G.A.

Question: Which winner of the 1st stage of the 1997 Giro d'Italia did not receive a mountain classification?