<?xml version="1.0"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
         xmlns:some="http://example.org/">
  <rdf:Description rdf:about="http://example.org/a" rdf:bagID="bag1">
    <some:prop rdf:ID="st1">
      <rdf:Description rdf:about="http://example.org/b" rdf:bagID="bag2">
        <some:otherProp rdf:ID="st2">A literal</some:otherProp>
      </rdf:Description>
    </some:prop>
  </rdf:Description>
</rdf:RDF>