Tuhia he whiti kōrero poto i runga i te kaupapa e whai ake nei:  Ka whakamahia e PersonX tētahi pūnaha tohu motuhake
Ae ra, anei he rarangi poto: He auaha a Gray, ā, ka whakamahi i tētahi pūnaha tohu motuhake hei whakawhitiwhiti kōrero. He maha nga wa ka whakamahia e ia nga tohu i hangaia e ia ano hei whakawhiti i ona whakaaro me ona whakaaro.