In the Japanese writing system, are obsolete or nonstandard hiragana. They include both stylistic variants of current hiragana and distinct alternative hiragana characters. Today, with a few exceptions, there is only one hiragana for each of the fifty consonant–vowel sequences (moras) in Japanese. However, traditionally there were generally several more-or-less interchangeable hiragana for each. A 1900 script reform ordained that only one selected character be used for each mora, with the rest deemed hentaigana. Although not normally used in publication, hentaigana are still used in shop signs and brand names to create a traditional or antiquated air.