 It is one of the two most successful indigenous scripts in West Africa in terms of the number of current users and the availability of literature written in the script, the other being N'Ko.Vai is a syllabic script written from left to right that represents CV syllables; a final nasal is written with the same glyph as the Vai syllabic nasal.Originally there were separate glyphs for syllables ending in a nasal, such as "don," with a long vowel, such as "soo," with a diphthong, such as "bai," as well as "bili" and "sɛli."