E hiahiatia ana ngā hanganga whīwhiwhi me ngā whakahaere hangahanga hei hanga, hei pupuri hoki i ētahi o ngā hangarau hou ake, ā, kua puta ake ngā umanga katoa ki te tautoko me te whakawhanake i ngā whakatipuranga whai painga o ngā utauta matatini ake.