   <?xml version="1.0" encoding="utf-8" ?>
   <D:multistatus xmlns:D="DAV:">
     <D:response>
       <D:href>http://www.example.com/papers/</D:href>
       <D:propstat>
         <D:prop>
           <D:principal-collection-set>
             <D:href>http://www.example.com/acl/users/</D:href>
             <D:href>http://www.example.com/acl/groups/</D:href>
           </D:principal-collection-set>
         </D:prop>
       <D:status>HTTP/1.1 200 OK</D:status>
       </D:propstat>
     </D:response>
   </D:multistatus>