Started a bit on the exercises today.
I took a short look at 4.3 but came to the conclusion that I don't find any patterns of sign-usage through time quickly and don't care to look more closely.
Then I did 4.4. It's a really good exercise, I think, finally something to put into practice what one learned.
Took a break half-way-through, which might be actually helpful to better internalize how the syntax works.
Those genitive constructions are quite counter-intuitive - for such exercises I can do them without too much hassle, but if I were to actually use that in spoken language... arghh, or rather ak ak ak
I found a few mistakes in the solutions however (missing words, mainly). Seems like the author is also getting confused xD
And he does not mention that when one has a genitive as a modifier and an adjective as a modifier, the genitive comes before the adjective - but that's how he writes it in the solutions. Semantically it makes sense, though.
I started with 4.5 but only did a-d thus far.
There were also some words required but not provided that had not occurred in any examples before. But I could find all of them by searching the PDF for the meaning in question.