- Each topic is associated with an RDF collection
<rdf:Description rdf:about="file:///home/kahan/.amaya/bookmarks.rdf#Topic1">
<b:collection rdf:parseType="Collection"> <rdf:Description
rdf:about="file:///home/kahan/.amaya/bookmarks.rdf#bookmark2" />
<b:Separator />
<rdf:Description
rdf:about="file:///home/kahan/.amaya/bookmarks.rdf#Topic4" />
<rdf:Description
rdf:about="file:///home/kahan/.amaya/bookmarks.rdf#bookmark1" />
</b:collection>
</rdf:Description>