What are the grammatical structures of the following three poems?

The grammatical structure in classical poetry is not much different from that in modern poetry, but classical poetry mainly emphasizes not the grammatical structure, but the tone structure, that is, the juxtaposition order relationship within and between sentences. You can't see the single sentence structure of a poem, but you can grasp it from the whole poem. Rhyme is divided into seven words and five words. Seven-character rhyme has the following four structures, with "0" as the level, and "1" as the ambiguity, namely:

00 1 1 100 / 1 100 1 10 / 1 1000 1 1 / 00 1 1 1 00 / 00 1 100 1 / 1 100 1 10 / 1 1000 1 1 / 00 1 1 100

00 1 100 1 / 1 100 1 10 / 1 1000 1 1 / 00 1 1 1 00 / 00 1 100 1 / 1 100 1 10 / 1 1000 1 1 / 00 1 1 100

1 100 1 10 / 00 1 1 100 / 00 1 100 1 / 1 100 1 10 / 1 1000 1 1 / 00 1 1 100 / 00 1 100 1 / 1 100 1 10

1 1000 1 1 / 00 1 1 100 / 00 1 100 1 / 1 100 1 10 / 1 1000 1 1 / 00 1 1 100 / 00 1 100 1 / 1 100 1 10

Seven-character verse requires the third and fourth sentences, and the fifth and sixth sentences constitute seven-character couplets respectively, so there is only a case of flat feet, such as the antithesis in Li Shangyin's seven-character poem Untitled:

001100/1001001165438 Although my body doesn't have bright wings like a phoenix, I can feel the harmonious heartbeat of the sacred unicorn.

11001/001100 across the spring wine, while it warms me up, I'll remind you how to bet/there, in groups, we are at the crimson light.

Five-character verse also has four structures, as long as the first two of each seven-character sentence are removed:

1 1 100 / 00 1 10 / 000 1 1 / 1 1 100 / 1 100 1 / 00 / kloc-0/ 10 / 000 1 1 / 1 1 100

1 100 1 / 00 1 10 / 000 1 1 / 1 1 100 / 1 100 1 / 00 / kloc-0/ 10 / 000 1 1 / 1 1 100

00 1 10 / 1 1 100 / 1 100 1 / 00 1 10 / 000 1 1 // 1 / kloc-0/ 100 / 1 100 1 / 00 1 10

000 1 1 / 1 1 100 / 1 100 1 / 00 1 10 / 000 1 1 / 1 / kloc-0/ 100 / 1 100 1 / 00 1 10

The five-character rhyme requires the third and fourth sentences, and the fifth and sixth sentences form a five-character couplet respectively, such as the antithesis in Du Fu's poem "Spring Hope":

Petals fall like tears/Lonely birds sing their sorrows.

After three months of war, a letter from home is worth a ton of gold.