Answer: The article in the valley is difficult and astringent, but Yuan Ming’s actions are extremely noble. Taken from the collection of word couplets in "Ode to the Stone Gate".
The valley refers to Huang Tingjian, and Yuanming refers to Tao Yuanming.
Huangshan Valley is Huang Tingjian, a calligrapher and writer in the Northern Song Dynasty. His courtesy name was Lu Zhi, his nicknames were Valley Daoren and Fu Weng, and he was a native of Fenning (now Xiushui County, Jiangxi Province). His poems, calligraphy and paintings were known as the "Three Wonders", and he was as famous as Su Dongpo at that time, and was known as "Su Huang". Good at articles and poetry, especially calligraphy. The style of poetry is unique and hard, and it strives to reject light and vulgar habits, creating a trend of a generation.
Tao Yuanming (about 365-427) was named Qian or Yuanming. It is said that in the Jin Dynasty, his name was Yuanming, with the courtesy name Yuanliang, and he was a native of Chaisang, Xunyang (now southwest of Jiujiang, Jiangxi). Writer of Jin Dynasty. He is famous for his fresh and natural poetry. The works are plain and natural, based on real feelings, which influenced the creation of poetry in the Tang Dynasty.