- You can use the
rdf:about
as a URI for external resources
- You can add RDF to XML directly (in its own namespace).
E.g, in SVG:
<svg ...>
...
<metadata>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
...
</rdf:RDF>
</metadata>
...
</svg>