<prompt> Qedela lo musho olandelayo: Wanqoba indondo yegolide emdlalweni we-acroski i-ski ballet eMqhudelwaneni Wase-  <response>: I-FIS Freestyle World Ski Championships ngo-1986 eTignes. Emqhudelwaneni we-FIS Freestyle World Ski Championships ngo-1989 e-Oberjoch, wanqoba indondo yesibili yegolide ku-ski ballet. Wathola indondo yesiliva ku-ski ballet ku-FIS Freestyle World Ski Championships ngo-1991 eLake Placid. 