Structured values in RDF

<?xml version="1.0"?>
<RDF xmlns="http://www.w3.org/TR/WD-rdf-syntax#">
  <Description about="http://foo.bar.com/video.mpg">
    <Author xmlns="http://docs.r.us.com/bibliography-info/">Janne Saarela</Author>
  </Description>
</RDF>