<prompt> Margretta Gretta Kok 1944-10-16 dә Amsterdam lan cido shima baden baden baden. Suro saa 1960 lan, shiye kən uwuye suro 200m breaststroke event dən, amma suro saa 1964 lan shiye dare dareye dәro sәkkәnyi. Suro saa 1966 yen, shiye medal konnube suro 4 × 100 m medley relay lan zuwuna suro European Aquatics Championships lan  <response>: kǝla kǝnǝngabe. Yanyanzǝ kamuye, Ada Kok, shiye kuru bikke bikke bikkebe Olympicbe kuru suro karapka bikke bikke bikkebe nǝm gade-gadebe saa 1966 lan kənasar zayebe suwudǝna dǝn. 