He aha nā Glyphs?

He aha nā Glyphs? Ma ke kālaiʻana, he'ōmole he hōʻailona i kahakahaʻia a kākauʻia paha ma luna o kekahi pōhaku (petroglyph) a lāʻau paha. Hiki iā ia ke hōʻailona a iʻole ka paʻi kiʻi, aiʻole kahi hapa o kahi pūnaewele, e like me ka kākau'ōlelo syllabic ...