<prompt> Ngwala tšwetšopele ya serapa se - Johanna Jopie Katarina Selbach 27 July 1918 30 April 1998 e be e le moatlelete wa go rutha wa freestyle go tšwa Netherlands. O thopile dimetale tša gauta go Dipapadi tša Mabelo a Meetse tša Yuropa tša 1934  <response>: le Willy den Ouden, Rie Mastenbroek le Ans Timmermans le 1936 Summer Olympics le den Ouden, Mastenbroek le Tini Wagner ka 4 × 100 m freestyle relay ya basadi. 