<prompt> Qedela umusho olandelayo: Wathola indondo yegolide emidlalweni ye-aerials eMqhudelwaneni Wamazwe Ngamazwe Wase-FIS Wase-Oberjoch ngo-1989. Wabuye waqhudelana emncintiswaneni  <response>: 1986 indawo yesishiyagalombili kanye no-1991 indawo yesihlanu ubuqhawe bomhlaba. 