Poetry is divided into quatrains and metrical poems. A quatrain usually has four sentences with five words each, which is called a five-character quatrain. Each sentence has seven words, which is called a seven-word quatrain. Rhyme is similar to it, with eight sentences and five words, each of which is called five-word rhyme; There are seven words in each sentence, which is called seven-character poem.
For example, Wen Tianxiang's Zero Crossing and Ding Yang is the seven laws. It has eight sentences, each sentence has seven words.
When hard work comes,
There are few stars around.
The mountains and rivers are broken and the clouds are surging.
Life experiences ups and downs.
Fear. The beach says fear,
Sigh in the ocean.
People who have never died since ancient times,
Take the heart of Dan and follow history.
It should be noted that just because a poem has several sentences does not mean that there are several periods or question marks.