Folk literature includes the epics, songs, myths, and other oral literature of Filipino ethnic teams. Tanaga poetry has a 7777 syllable depend, and its rhyme types range from twin rhymes to none. Awit poetry has 12-syllable quatrains, with rhyming similar to the Pasyon chanted in the pabasa. Ambahan poetry consists of seven-syllable lines with rhythmic finish syllables, usually chanted and sometimes written on bamboo. Ivory carving has been practiced within great site the Philippines for a millennium; its oldest recognized ivory artifact is the Butuan Ivory Seal, dated to the ninth to 12th centuries. Ivory religious carvings grew to become widespread after ivory was imported to the Philippines from Asia, where carvings focused on Christian themes such because the Madonna and child, the Christ baby, and the Sorrowful Mother.