<prompt> Yisho impendulo yalo mbuzo oyinkimbinkimbi: URoger O. Egeberg wayengumsizi kaNobhala Wezempilo Nezindaba Zesayensi ngesikhathi sokubusa kukamongameli owabekhona phakathi neminyaka emingaki?  <response>: Ngo-1969 kuze kube ngo-1974 