<author> <activity:object-type>http://activitystrea.ms/schema/1.0/person</activity:object-type> <uri>http://gs.example.org:4040/index.php/user/1</uri> <name>lambda</name> <link rel="avatar" type="image/png" media:width="96" media:height="96" href="http://gs.example.org:4040/theme/neo-gnu/default-avatar-profile.png"/> <link rel="avatar" type="image/png" media:width="48" media:height="48" href="http://gs.example.org:4040/theme/neo-gnu/default-avatar-stream.png"/> <link rel="avatar" type="image/png" media:width="24" media:height="24" href="http://gs.example.org:4040/theme/neo-gnu/default-avatar-mini.png"/> <poco:preferredUsername>Constance Variable</poco:preferredUsername> <poco:displayName>lambadalambda</poco:displayName> </author>