<prompt> Ngwala go tšwela pele ka serapa se - O thopile sefoka sa gauta ka go kitima ka godimo ga lefaufau FIS Freestyle World Ski Championships ka 1986  <response>: kua Tignes. Kua FIS Freestyle World Ski Championships ka 1989 kua Oberjoch, o ile a ba wa bošupa ka di-aerials. 