Guidelines 126.96.36.199 needs repair and clarification.
It is not clear what elements fall into each of the five classes and even how one would find out.
There is a reference to model.inter, but there is no such model.
In the phrase, "within such divisions," it is not clear what "such" refers to.
Are the elements populating the eight classes model.divLike, model.div1Like, model.div2Like, . . . , model.div7Like the only divisions? Or is the "etc." more open-ended than that? (I suspect divGen would be included.)
Which elements are chunks? The language suggests all and only those in model.divPart, But the language also suggests that model.divPart has several subclasses, but there are only three and model.entryLike isn't one of them, though the language suggests it is.
Elsewhere (http://www.tei-c.org/release/doc/tei-p5-doc/en/html/DR.html#DRBOD) the guidelines indicate that chunks are "paragraphs, verse lines, stanzas or . . . ab elements". But there is no <stanza> element. In the guidelines, "stanza" is generally a @type of <lg> but is at least once a @type of <div>.
The Guidelines say that over two-thirds of the 500+ elements defined in 5.0 are in one of these "groupings." Are those "groupings" these "basic model classes"? But the opening sentence set the expectation that all elements do. Once the reader sees that they do not, then the relationship between the "basic model classes" of 188.8.131.52 and "model classes" of 1.3.2 becomes unclear, since the "basic model classes" have no unambiguous definition.