What is berthing under the poetic style of Beibao Mountain?

Five-character verse According to the brief introduction of the next berth on Beibao Mountain, the next berth on Beibao Mountain was written by Wang Wan, a poet in the Tang Dynasty, describing the scenery of boating in the water towns in the south of the Yangtze River and expressing the poet's yearning for his hometown. The number of words in each poem of "A berth under the North Fort Mountain" is five, and every sentence of the whole poem conforms to the rhythm law, so the poetry genre is five-character verse.