A tribe or race became extinct in the development of history, but its writing will be handed down. Yalilo is such a kind of writing. Archaeologists discovered this kind of writing inland. After studying, there is no word for sea in Yalilo, but there are words for winter, snow and wolf. 
There is no word for mountain in Yalilo
 experts speculate that the tribes or races in history that use Yalilo have lived in a cold zone away from the ocean.