tokens: If there is , then it registers itself with the Transaction , to take part in the commit/rollback sequence ( which Transaction controls , and might propogate to varying transaction coordinators , such as kernel , distributed , etc . ) .
ner_tags: O O O O O O O O O O B-Class O O O O O O O O O O B-Class O O O O O O O O O O O O B-Application O O O O O O O