<prompt> Qedela lo musho olandelayo:  <response>: I-FIS Freestyle World Ski Championships ngo-1986 eTignes, emidlalweni ye-aerial kanye ne-moguls. Wathola indondo yegolide ehlanganisiwe ku-FIS Freestyle World Ski Championships 1989 e-Oberjoch, nendondo yethusi kuma-aerials, ngenkathi ebeka okweshumi kuma-moguls nakweseshumi ku-ballet. Ngo-1988 wathola indondo yegolide emidlalweni yama-Olympic eCalgary eCanada. Uphinde wabamba iqhaza kwi-FIS Freestyle World Ski Championships 1991 eLake Placid, eNew York, lapho athatha khona indawo yesishiyagalombili kuma-moguls. 