Ko te ngongo whakamahana rūma makariri e whakamahia ana mō te whakarewa i te hau whakamatao, ko te āhua o te ngongo whakamahana whakarewa he momo AA (ngongo tika takirua), ko te roa o te ngongo e rite ana ki te rahi o tō hau whakamatao, ka taea te whakarite i tā mātou whakamahana whakarewa katoa kia rite ki te hiahia.
