Poetry have challenged the traditional definitions of the sonnet form, rendering entire sequences of "sonnets" that often lack rhyme, a clear logical progression, or even a consistent count of fourteen lines. "Shi" () Is the main type of Classical Chinese poetry. Within this form of poetry the most important variations are "folk song" styled verse ("yuefu"), "old style" verse ("gushi"), "modern style" verse ("jintishi"). In all cases, rhyming is obligatory. The Yuefu is a folk ballad or a poem written in the folk ballad style, and the number of lines and the length of the lines could be irregular. For the
Petrarchan sonnet first 8 lines) typically introduces the theme or problem using a rhyme scheme of ABBAABBA. The sestet (the last 6 lines) provides resolution for the poem and rhymes variously, but usually follows the schemes of CDECDE or CDCCDC. Octave - introduces the theme or problem Sestet - solves the problem Petrarchan sonnet The Petrarchan sonnet is a sonnet form not developed by Petrarch himself, but rather by a string of Renaissance poets. Because of the structure of Italian, the rhyme scheme of the Petrarchan sonnet is more easily fulfilled in that language than in English. The original Italian sonnet form