tokens: To do the circle version will involve a fair bit more work I 'd say as not only do you need to read the circle gesture you also need your lock to move around the circle .. .
ner_tags: O O O B-User_Interface_Element O O O O O O O O O O O O O O O O O O O O B-User_Interface_Element O O O O O O O O O O B-User_Interface_Element O O