What is a mooring under north fort hill's poetic genre?

five-character verse. According to the inquiry of Jiangshan Literature Network, a mooring under north fort hill is the work of Wang Wan, a poet in the Tang Dynasty, and it belongs to a five-character poem. This poem accurately and concisely describes the magnificent scenery such as green mountains, green waters, flat tides and wide banks when the author berthed at the foot of Beigu Mountain in late winter and early spring, and expresses the author's deep homesickness.