Prefix/@/@prefix log: <http://www.w3.org/2000/10/swap/log#>./@/Prefix/@/@prefix : <authen#>./@/Subject/@/_:who/@/_:who/@/Verb/@/:authenticated/@/<authen#authenticated>/@/Object/@/<mailto:w3c-ac-forum@w3.org/>/@/mailto:w3c-ac-forum@w3.org//@/