img_height height img_width width A contributor to an article (cur_user_text, img_user_text) A creator of an article cur_timestamp, img_timestamp cur_title, img_name cur_counter Subject to be discussed Article A category in the category graph Category An image Image A stub is an article that have not recieved substantial attention. Stub img_type in rfc mime/content type format connection between two things link A connection between two wiki articles internalLink A connection between a wiki article and the outside world externalLink A connection between a wiki article and an image image Redirect between two Articles (e.g. IBM to International_Business_Machines) redirect Text of page in Wiki markup text for relating Categories