Ko te nuinga o ngā taitapa o waho kei te whakahaeretia ā-wāhanga, kei te whakahaeretia katoa rānei, ā, ka taea te whakawhiti ā-ture anake i ngā wāhitaki taitapa kua tohua, ā, ka taea te whakahaere i ngā rohe taitapa.