Most humans would stick to stuff like

`book:: 1 John 2:7-12 | KJV`

I recognize and render Bible books, Quran, and some others without hyphens or quotations. A number preceding letters is concatenated to a title. Anything that is " number:number-number" can be assumed to be chapter-number:versebeginning-verseending. And there are typical keywords like "preface" or "appendix", that can be identified. I also work with plural or singular and stuff like "Ch" "Ch." "Chapter" and Roman numerals. I can add that to the spec, as a hint to later parser-writers.

Anything more complex is probably auto-generated or written by an expert.