He kaha te ahua o te hoahoa o tenei ngongo ngera ngutu.He ahua pango ataahua, he mea hoahoa ki te uhi tuwhera.Na reira, ka kati te uhi o te hua, ka kitea te tae koura o te ngongo o roto, ka tino paparanga te hua.Ko te uhi o waho me te waha pounamu he mea hanga ki te hiahia.