tokens: I would recommend looking into indexes as well as setting up the cron jobs , as rather than just cut down the amount of time it takes for you to generate the data each month , you could fully automate it , and have it running in a few minutes , rather than hours each month .
ner_tags: O O O O O O O O O O O O B-Application 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