Ko te mahi me te pono o ngā pūwhakarewa whakawhiti hiko e whakawhirinaki ana ki te kōwhiringa rauemi, te hoahoa hanganga, me ngā tukanga hanga. Kei raro nei he tātaritanga taipitopito, ā, e whakaatu ana i ngā taputapu hanga matatau a tā mātou kamupene e kapi ana i te tukanga katoa.