"A pertinent way to analyze this broad phenomenon is to subdivide its analysis in three sections which content is partly based on the updated findings…".
Until this passage, I was 100% sure that in this case I had to use whose instead of which.
An entry on Merriam-Webster goes like this:
(Content)
a : the matter dealt with in a field of study
… the content of sociology is inexhaustible … — Franklin H. Giddings
Best Answer
I think the cited context is a relatively uncommon literary / dated / formal / archaic construction as used here...
...where the article (the which) is normally included where there's a specific noun identified immediately after which. In many such contexts you could do away with the noun (content in OP's context, desire in mine) completely, but in both these examples that's a little problematic.
This is because the exact referent of which hasn't been precisely stated in preceding text (which content = the division of the analysis into three sections, which desire = that of people eager to know the truth through study). The writer needs to insert a clarifying noun so it's obvious which "which" is being referred to.
It's not all that easy to find written examples of [the] which noun, but here's another one...