<prompt> Qedela umusho olandelayo: UDavid Realista Grachat owazalwa ngo-21 Januwari 1987 ungumshayeli we-para-swimmer wasePortugal, oncintisana emicimbini yokuhlukaniswa kwe-S9. Useke waqhudelana emidlalweni emithathu yama-Paralympic ehlobo, ngo-2008 eBeijing,  <response>: Ngo-2012 eLondon nango-2016 eRio. UGrachat unqobe izindondo zombili ezingeni laseYurophu nezwe, futhi ugxile emjahweni wamahhala wamamitha angama-400. 