tokens: I have since realized that while I want to be able to display capitalized letters in the urls , I want them to be case insensitive in terms of what the user types in , and I want to enforce uniqueness on the urls in a case insensitive manner .
ner_tags: 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 O O O O O O O O O O O O O O O O O O O O O O O O