<?xml version="1.0"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:eg="http://example.org/">
  <rdf:Description eg:prop="a" rdf:nodeID="x">
    <eg:prop rdf:parseType="Resource">
       <eg:x rdf:nodeID="x"/>
       <eg:y rdf:nodeID="y"/>
       <eg:z>
         <eg:p />