Rhyme with the suffix 1.2.4, and match with the other two sentences to find an ancient poem.

What you said is the "quatrains" of the first rhyme in modern poetry, including seven quatrains and five quatrains. The quatrains written according to this meter are all consistent.

For example:

Spring blossoms and willows blow in the ditch.

Liu Fang waits for no one to report to Liaoyang.

Another example is:

Every year, after the defenders defend Huang Jinhe, hand knives waving whips keep ringing day and night.

In the late spring when it snows heavily, the Great Wall, a journey across the Yellow River and around Montenegro.