Among the 28 manu rere glyphs in the text of G we can perceive different 'personalities', e.g.:

Ga3-8	Gb8-18

We can identify 6 birds belonging to the type exemplified by Ga3-8 ('magnificent manu rere'):

Ga2-22	Ga3-8	Gb1-4	Gb4-6	Gb4-15	Gb8-5

They are distributed in a way which enables the reader to understand that the 472 glyphs represent a combination of 360 and 112.

If we focus on the non-complex (redmarked below) glyphs and count the distances between them, we can identify three multiples of 4:

Ga2-22	Ga3-8	Gb1-4	Gb4-6	Gb4-15	Gb8-5
53	68	234	327	336	447
472 - 380 = 92 = 4 * 23	268 = 4 * 67			112 = 4 * 28
	380 = 20 * 19

We can read that 472 = 4 * 90 (i.e. 23 + 67) + 4 * 28. The fundamental building blocks are 360 and 112. Obviously 360 stands for the regular solar year with 12 months and 30 days in each, but the moon measure 112 is not as known for us in Western Civilisation.

There are 3 months in a quarter and 4 quarters in a year, there are 4 weeks in 28 nights and 4 'quarters' will be 16 weeks = 112 nights. We should remember that 112 has been noted before:

	92		55		55		67
Ga4-3		Ga7-10		Gb1-6		Gb3-1		Gb5-6 (360)
94 ↑			112 →				68 ↓
			180
274

	67		111			82
Gb3-1		Gb5-6		Gb8-30	Ga1-1		Ga4-1	Ga4-2
	68		112		84
	264

112 + 68 = 180 and 112 + 84 = 196. 180 = 6 * 30 and 196 = 7 * 28.

472 = 6 * 30 + 7 * 28 + 96, where 96 of course must be a multiple of 8 (96 = 8 * 12).