<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">

   <!-- check unknown rdf property attribute is picked up -->

  <rdf:Description rdf:about="http://example.org/res"
                   rdf:foo="blah"
     />
</rdf:RDF>