Which of the "rhyme" in the rhyme foot of ancient poetry refers to the "rhyme head, rhyme belly and rhyme tail" in vowels? Or something else? thank you

The distinction between the landlord and the landlord is still too thin. Generally, rhyme feet rhyme with abdomen and rhyme ending, but there are also three rhymes. From the perspective of modern rhyme poetry, you can use all three rhymes at the same time. But generally speaking, the rhyme at the end of a sentence is heavier than that at the end of the abdomen, and the rhyme can sometimes be ignored.