USJ document location specifying where in the book the location is pointing to
Specifies which part of the verse reference the document location is relative to:
book = document location is specified relative to the start of the book. The first content
entry of the top-level USJ marker is the id marker of the book
chapter = document location is specified relative to the start of the chapter in the
specified book. If the chapter number is 1, the first content entry of the top-level USJ
marker is the id marker of the book because the intro content before chapter 1 is part of
chapter 1. If the chapter number is greater than 1, the first content entry of the top-level
USJ marker is the c marker of the chapter
periph markers between id and chapters, so this may need to be revised when
peripheral books are more fully supportedDefaults to 'chapter' (see UsjVerseRefChapterLocation)
Verse reference indicating which book the document location is in
A verse ref and a location in USJ space that point to a specific location in USJ. The location in USJ space starts from the start of the book specified in the verse ref. The rest of the verse ref is meaningless and can be disregarded.