Poetry other variations of "shi" poetry, generally either a four line (quatrain, or "jueju") or else an eight line poem is normal; either way with the even numbered lines rhyming. The line length is scanned by according number of characters (according to the convention that one character equals one syllable), and are predominantly either five or seven characters long, with a caesura before the final three syllables. The lines are generally end-stopped, considered as a series of couplets, and exhibit verbal parallelism as a key poetic device. The "old style" verse ("gushi") is less formally strict than the "jintishi", or regulated
Poetry recognisable structures or forms, and write in free verse. But poetry remains distinguished from prose by its form; some regard for basic formal structures of poetry will be found in even the best free verse, however much such structures may appear to have been ignored. Similarly, in the best poetry written in classic styles there will be departures from strict form for emphasis or effect. Among major structural elements used in poetry are the line, the stanza or verse paragraph, and larger combinations of stanzas or lines such as cantos. Also sometimes used are broader visual presentations of words and