[TYPO3-ttnews] multiple category trees possible?

[Frank]

Hello,

I am new to tt_news. If I understand the logic well, you have one single 
tree of categories and you can 'tag' a newsitem at different locations in 
this tree. This is polyhierarchy. But the backdraw is that you can only 
select one category, you can't combine. Imagine this category structure:

people
    elderly
    youth *
sports
    tennis
    football *

Here I can select 'youth' or 'football' for instance. But if I want to 
select 'youth football'? Problem...
I could make a very long list now with new categories like 'youth football', 
'elderly football', 'youth tennis',...
But it would be better to have 2 trees:

people            sports
    elderly            tennis
    youth              football

Now I can combine these two dimensions. This is faceted classification. Much 
better.

My question is: is this possible in tt_news???