<grammar xmlns=“relaxng.org/ns/structure/1.0” datatypeLibrary=“www.w3.org/2001/XMLSchema-datatypes”>

<define name="status">
  <element name="status" ns="http://cpee.org/ns/properties/2.0">
    <element name="id">
      <data type="integer"/>
    </element>
    <element name="message">
      <data type="string"/>
    </element>
  </element>
</define>

</grammar>