These three subdivisions of the text (nos. 10-12) are characterized by having no obvious parallels and by having six marks (in G) on the 'threads' at right in the glyphs at the end of each subdivision:

 

1-3 parallels 3
4-6 no parallels 5 marks 6 9
7-9
10-12 6 marks 3
1-12 number of subdivisions 12