<prompt> Hendrika Anna Maria Ria van der Horst owazalwa ngo-10 Agasti 1932 ungumbhukudi waseNetherlands owayedlala i-backstroke owahlanganyela kuma-Olimpiki asehlobo ka-1948 no-1952. Ngo-1948, waba ngowesihlanu emjahweni wamamitha ayikhulu, kwathi ngo-1952 waxoshwa ngenxa yokuphambuka ngendlela engafanele. Wathola indondo yegolide emncintiswaneni ofanayo eMqhudelwaneni WaseYurophu Wezemidlalo Yasemanzini wango-1950  <response>: . futhi. 