Question from the RDF-in-XHTML task force on the HTML Role Attribute

Hi SWIG members,

The RDF-in-XHTML Task Force is facing an issue on which we could use  
the opinion of more RDF experts.

Specifically, we're considering assigning a RDF property to the ROLE  
attribute in HTML, for example:

==========
<div role="dcterms:abstract">
.... the summary of the document....
</div>
==========

would yield a triple:

==========
_:div0 xhtml2:role dcterms:abstract .
==========

The question is, what should xhtml2:role be? Should it be simply  
rdf:type? Should it be xhtml2:role with no relationship to rdf:type?  
How should we go about making this decision? Are there guidelines for  
subclassing rdf:type?

Thanks for your help,

-Ben Adida
Chair, RDF-in-XHTML Task Force


(this is reposted from www-rdf-interest....)