Given the following context:

The Tang period was a golden age of Chinese literature and art. There are over 48,900 poems penned by some 2,200 Tang authors that have survived until modern times. Skill in the composition of poetry became a required study for those wishing to pass imperial examinations, while poetry was also heavily competitive; poetry contests amongst guests at banquets and courtiers were common. Poetry styles that were popular in the Tang included gushi and jintishi, with the renowned poet Li Bai (701–762) famous for the former style, and poets like Wang Wei (701–761) and Cui Hao (704–754) famous for their use of the latter. Jintishi poetry, or regulated verse, is in the form of eight-line stanzas or seven characters per line with a fixed pattern of tones that required the second and third couplets to be antithetical (although the antithesis is often lost in translation to other languages). Tang poems remained popular and great emulation of Tang era poetry began in the Song dynasty; in that period, Yan Yu (嚴羽; active 1194–1245) was the first to confer the poetry of the High Tang (c. 713–766) era with "canonical status within the classical poetic tradition." Yan Yu reserved the position of highest esteem among all Tang poets for Du Fu (712–770), who was not viewed as such in his own era, and was branded by his peers as an anti-traditional rebel.The Classical Prose Movement was spurred in large part by the writings of Tang authors Liu Zongyuan (773–819) and Han Yu (768–824). This new prose style broke away from the poetry tradition of the piantiwen (騙體文, "parallel prose") style begun in the Han dynasty. Although writers of the Classical Prose Movement imitated piantiwen, they criticized it for its often vague content and lack of colloquial language, focusing more on clarity and precision to make their writing more direct. This guwen (archaic prose) style can be traced back to Han Yu, and would become largely associated with orthodox Neo-Confucianism.Short story fiction and tales were also popular during the Tang, one of the...

answer the following question:

What authors used a writing style that broke away from the style started during the Han dynasty? 

Liu Zongyuan