rdf:RDF and nested contexts

The proposal is to make a small change to the current RDF syntax and allow
an rdf:ID attribute on the rdf:RDF element.

Perhaps this might be acceptably in scope for the current RDF WG.

Regarding:
http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2002Jan/0350.html

Nested contexts can be encoded:

<rdf:RDF xmlns:rdf="...">
    <rdf:RDF rdf:ID="#nest">
            ...
    </rdf:RDF>
    <rdf:Description rdf:about="#nest">
        ...
    </rdf:Description>
</rdf:RDF>

alternatively:

<rdf:RDF>
    <rdf:Description rdf:about="#jonb">
        <log:asserts>
            <rdf:RDF>
                    .... nested context
            </rdf:RDF>
        </log:asserts>
    </rdf:Description>
</rdf:RDF>

since it isn't entirely clear to me when RDF embedded within for example
XHTML is intended to be asserted the issue of when the contents of a nested
context (rdf:RDF element) are intended to be 'asserted' should be clarified.
(I am providing this request for clarification as 'wiggle room' in the hope
that it will bring the issue in-scope)

Jonathan