xquery version "1.0";
declare namespace po="http://www.w3.org/2002/ws/sawsdl/spec/wsdl/order#" ;
declare namespace rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
declare namespace owl="http://www.w3.org/2002/07/owl#" ;
<rdf:RDF>
  <po:OrderConfirmation>
    <po:hasStatus rdf:datatype="http://www.w3.org/2001/XMLSchema#string">{ fn:string(/) }</po:hasStatus>
  </po:OrderConfirmation>
</rdf:RDF>