Each canto is composed of three-line tercets, the first and third lines rhyme, the second line rhymes with the beginning of the next tercet, establishing a kind of overlap, reflected in the overlapping motif of the Danteum design.
"Divine-Comedy-Longfellow-s-Translation-Complete"
Dante Alighieri
The sestet continues in the first tercet, cde, the thought or feeling in a new direction or from a new point of view, and in the second, cde, brings it to a full conclusion.
"The Principles of English Versification"
Paull Franklin Baum