The following posts give examples to the ease-of-use of pielrf
First, Thomas More's Utopia.
I moved the Gutenberg license to the end, and added <chapter> tags.
All in all, less than 5 minutes
pielrf -i utopia.txt -o utopia.lrf -t Utopia -a "Thomas More"
Note that the paragraphs are REALLY LONG in Utopia
(and so are the sentences).