<prompt> Ngwala tšwetšopele ya serapa se - Lebelo la banna la tseleng go Dikgaisano tša Lefase tša UCI tša Tsela tša 1979  <response>: e bile kgatišo ya bo-46 ya tiragalo ye. Lebelo le ile la swarwa ka Sontaga, August 26, 1979 kua Valkenburg, Netherlands. Lebelo le le ile la thopša ke Jan Raas wa Netherlands. 