How to use tree field in material?

Question

Drupal

I just can't figure out how to implement such an idea:
There is a Conference material type and it should be associated with a tree-like set of terms (Taxonomy?). And here the problem appears - each NODE of the Conference type must have its own set of terms! Thus, the node must be attached either to its BRANCH in the general tree of terms, or it is necessary to use not Taxonomy at all, but what then?...
Again, a single tree with separate branches for nodes will grow greatly and will not be comme il faut... It is logical to make separate dictionaries, but how to bind them to nodes?
On the other hand, logic suggests that Taxonomy does not fit here at all (there are simply many auxiliary modules for it).
All this is aggravated by the fact that I have to use the terms from the tree associated with the Conference node in Article type nodes.
If you describe it in human words, you get the following: there are many conferences and each has its own set of sections. And there is an article that is related to a specific conference and a section belonging to this conference, and there are even more such articles.
How to implement it?

Answer 1

My own idea was born: maybe use the comment mechanism to build a tree of sections for the conference?