Most dialects of Japanese, including the standard, use morae, known in Japanese as "haku" () or "mōra" (), rather than syllables, as the basis of the sound system. Writing Japanese in kana (hiragana and katakana) is said by those scholars who use the term "mora" to demonstrate a moraic system of writing. For example, in the two-syllable word "mōra", the "ō" is a long vowel and counts as two morae. The word is written in three symbols, , corresponding here to "mo-o-ra", each containing one mora. Therefore, scholars argue that the 5/7/5 pattern of the "haiku" in modern Japanese is of morae rather than syllables.