The capital for Kiribati is already in GeoNames, only it had Bairiki as its main name. I have deleted this name as it is probably more the name of the Island then the city and renamed it to South Tarawa :
http://www.geonames.org/2110257/south-tarawa.html
After having done this I am not sure whether it was correct to delete the name Bairiki as some sources seem to refer to the city with this name.