This is called meter. It is the basic rhythmic structure of a line in poetry. Many forms of poems require a specific meter.
To make sure her narrative is ready she can get with a friend a talk about it, get someone to read over it, and another thing she could do is edit.
According to my teacher the different narratives are to make it more generally able to relate to different parts of the population. he is trying to " make the bitter pill of truth about the human condition easier swallow by wrapping it in common figurative language and critisizing his critics." hope that helped but that is all my teacher said.
Mainly slavery would bring criticism to the leader since many in the western territories were not for this act
