Ko e meʻalele fika 0 ʻi he fakatātaá ko hoʻo meʻalele. ʻOkú ke tatali ʻi ha feituʻu tatali afe toʻomataʻu ʻi he hala ʻoku hokohoko atu ʻi ha fetaulakiʻanga T. ʻOku fakaofi ʻa e X mei he tafaʻaki fehangahangai pea afe toʻohema ki he hala fakatafaʻaki tatau. ʻOku tatali ʻa e Y ʻi ha GIVE WAY ʻi he hala fakatafaʻaki ko ia. Ko hai kuo pau ke ke tukuange ʻa e hala ki ai? ʻOku ʻikai ha papa, maama pe tuʻutuʻuni polisi kehe ʻoku liliu ʻa e totonu ke muʻomuʻa kuo fakamatalaʻi.