<XML> <post> <relayable_retraction> <target_type>$target_type</target_type> <target_guid>$guid</target_guid> <parent_author_signature>$parentsig</parent_author_signature> <target_author_signature>$authorsig</target_author_signature> <sender_handle>$handle</sender_handle> </relayable_retraction> </post> </XML>