<prompt> Translate the following text to SwahiliOsmans tomb was formerly a Byzantine baptistery, and his sons tomb is in the nave of the neighbouring church fragments of its ancient mosaic pavement can be seen on the floor of the tomb.  <response>: Kaburi la Osman lilikuwa zamani baptisteri ya Byzantium, na kaburi la mwanawe liko katika nave ya kanisa jirani, vipande vya lami yake ya kale ya mosaic vinaweza kuonekana kwenye sakafu ya kaburi. 