Which of the following poets in the Tang Dynasty influenced the characteristics of "writing as poetry" in the Song Dynasty?

Taking words as poetry "taking words as poetry" not only refers to introducing some syntax and rules of prose into poetry, but also includes the use of poetic language. In the concrete works of Su Shi and Huang Tingjian, there are three main forms of expression: First, Su Huang consciously added some prose sentences to his poems. Simply put, "talking about poetry" means that the poet directly expresses his main thoughts, feelings, understanding and truth. Some people often confuse the three concepts of "taking discussion as poetry" with "advocating reason" (Yan Yu's language) and "taking writing as poetry". For example, the essence of "writing poetry" is to put words into poetry, or "discussing poetry". (Hu Ming's Poems Based on Literatures and Poems Based on Literatures, Journal of Hebei Normal University, 1984. 1) In fact, "respecting reason" and "taking reason as poetry" are two closely related but irreplaceable aspects. "advocating reason" refers to expressing the connotation of "philosophy" with poetry. Mainly belongs to the category of content; "Poetry focuses on discussion" mainly refers to the change of poetry from the traditional way of expressing feelings by things to the way of direct discussion, which mainly belongs to the category of art forms. The way of "discussion" and the content of "philosophy" belong to the function of prose under the specific historical conditions at that time. Su Shi and others included it in their poetry creation because they called it "taking literature as poetry". In Cang Hua, Yan Yu's criticism of "taking words as poems, discussing as poems and learning as poems" became a programmatic criticism recognized by later generations. The phrase "learning is poetry" first appeared in Cang Shi Lang Dialect written by Yan Yu, a poetic theorist in the Song Dynasty: "Modern gentlemen make strange interpretations, so words are poetry, learning is poetry, and discussion is poetry. The husband is unfair, not the poem of the ancients? This language is Yan Yu's criticism of the creation of Song poetry. From the perspective of China's poetry history, we can find that the unique writing style of Song poetry in Tang poetry was not formed overnight, but began as early as the Tang Dynasty. Du Fu, the pioneer of poetry, developed Han Yu and Du Mu in the late Tang Dynasty. As some researchers have pointed out: "The dispute between Tang and Song poetry lasted for a long time, which caused an illusion, as if there was nothing in common between Song poetry and Tang poetry. In fact, the Tang poetry has a tendency to evolve from the middle Tang Dynasty to the later Song poetry. "