Fill in the classification of poems by subject, form, genre, country and author.

Classified by subject matter: 1 one lyric poem about scenery, two poems about things, three poems about things, four poems about nostalgia and five frontier poems.

Classified by form: 1 ancient poetry 2 modern poetry 3 words 4 songs.

According to genre, there are ancient poems (including Yuefu songs) and modern poems (or modern poems). The poems produced by the previous generation in the Tang Dynasty are called ancient poems, and the new poems produced in the Tang Dynasty are called modern poems. According to the number of words in each sentence (one word is one word), there are five words, seven words and miscellaneous words. Combining the number of words and genre, there are five-character archaism and seven-character archaism; Five-character parent, seven-character parent. Modern poetry includes two kinds: regular poems and quatrains, namely five-character regular poems and seven-character regular poems; Five-character quatrains, seven-character quatrains. Regular poems are generally eight sentences, and quatrains are four.

According to country and author: foreign author, China author. Ancient author, modern author.