RE: Can a resource be a set or structure?

>Dear all,
>     Can a resource be a structure (not a collection)? In OO
>model, there are atomic
>objects and structured objects. Can resources and blank nodes be
>structured object?

Yes, but you have to bear in mind that the RDF model is not as close to the
OO model as one might expect from the terminology. Rather than using
explicitly defined, fixed OO-like structures, most structures will be
specified using the relationships between resources (i.e. the properties).

see the primer:
http://www.w3.org/TR/rdf-syntax-grammar/#section-Syntax-parsetype-Collection

and for more detail:
http://www.w3.org/TR/rdf-primer/#containers

>In fact, the real question is: waht resources and blank nodes are,
>proxies of something
>else or the representation of the things themselves?
>     Why there is no explicit description about this in rdf
>specifications? Is the question too naive?

The primer covers this quite a bit, but there's more explicit description in
the model & theory doc at

http://www.w3.org/TR/rdf-mt/#urisandlit