select party_id from eduwiki_pages_map where eduwiki_id = :eduwiki_id and page_id = :page_item_id select eduwiki_id from eduwiki_pages_map where page_id = :page_item_id select object_type from acs_objects where object_id = :party_id select last_name || ',' || first_names from persons where person_id = :party_id select group_name from groups where group_id = :party_id