<prompt> Christian Gessner au Geßner; cidanzǝ 16 Kǝntawu Junebe saa 1968 shima bǝlamma lardǝ Germanbe ritǝgǝnama wo, shido baditǝye k3ntau 200 m-a 400 m-a suro bǝlamma lardǝ Europebe saa 1991 be ladǝn.  <response>: Kuru 1991 World Aquatics Championships-a. Saa fuwunna dәn, shiye na uwuye sәdin suro awowa tiloyen suro 1992 Summer Olympics dәn. 