<wsp:Policy xmlns:wsp="http://www.w3.org/ns/ws-policy" xmlns:x="http://example.org/policy-test">
   <x:Logging wsp:Ignorable='true'>
    <wsp:Policy>
       <x:TwentyFourSeven/>    
    </wsp:Policy>
  </x:Logging>
</wsp:Policy>