tokens: Aside from pictures or media , I 've used modal dialogs to serve the same purpose as dialog boxes - to get the user to give some form of required input , or to acknowledge something before letting them interact with the site again .
ner_tags: O O B-User_Interface_Element O O O O O O B-User_Interface_Element I-User_Interface_Element O O O O O O B-User_Interface_Element I-User_Interface_Element O O O O O O O O O O O O O O O O O O O O O O O O O O