CV (consonant + vowel) syllables, a syllabary is well suited to write the language. As in many syllabaries, vowel sequences and final consonants are written with separate glyphs, so that both atta and kaita are written with three kana: あった (a-t-ta) and かいた (ka-i-ta). It is therefore sometimes called a moraic writing system. Languages that use syllabaries today tend to have simple phonotactics, with a predominance of monomoraic (CV) syllables. For example, the modern Yi script is used to write languages that have no diphthongs or syllable codas; unusually among syllabaries, there is a separate glyph for every consonant-vowel-tone combination (CVT) in the language (apart from one tone which is indicated with a diacritic). Few syllabaries have glyphs for syllables that are not monomoraic, and those that once did have simplified over time to eliminate that complexity. For example, the Vai syllabary originally had separate glyphs for syllables ending in a coda (doŋ), a long vowel (soo), or a diphthong (bai), though not enough glyphs to distinguish all CV combinations (some distinctions were ignored). The modern script has been expanded to cover all moras, but at the same time reduced to exclude all other syllables. Bimoraic syllables are now written with two letters, as in Japanese: diphthongs are written with the help of V or hV glyphs, and the nasal coda is written with the glyph for ŋ, which can form a syllable of its own in Vai. In Linear B, which was used to transcribe Mycenaean Greek, a language with complex syllables, complex consonant onsets were either written with two glyphs or simplified to one, while codas were generally ignored, e.g. ko-no-so for Knōsos, pe-ma for sperma. The Cherokee syllabary generally uses dummy vowels for coda consonants, but also has a segmental grapheme for /s/, which can be used both as a coda and in an initial /sC/ consonant cluster. Difference from abugidas The languages of India and Southeast Asia, as well as the Ethiopian Semitic languages, have a type of alphabet called an abugida or alphasyllabary. In these scripts, unlike in pure syllabaries, syllables starting with the same consonant are generally expressed with graphemes based in a regular way on a common graphical elements. Usually each character representing a syllable consists of several elements which designate the individual sounds of that syllable. In the 19th century these systems were called syllabics, a term which has survived in the