Ko te whāngai i te hiko, te tohu, me ngā raraunga te whakaritenga matua i roto i te hangarau hiko me te hanga panera. Ko te rauemi ārai, te pūnaha hononga me te hoahoa o ngā poraka pito ngā āhuatanga rerekē. He pai te poraka pito whāngai mō te hono me te/ranei te hono i tētahi, neke atu rānei o ngā kaiārahi hiko. Tērā pea he kotahi, neke atu rānei ngā taumata hononga kei runga i te kaha kotahi, kei te ārai rānei tetahi ki tetahi.