tokens: should i use a counter that is incremented each time the state changes from % to a value or vice versa and then if counter % 2 = 0 then add a new ArrayList and start writing to that ?
ner_tags: O O O O B-Data_Structure O O O O O O O O O B-Code_Block O O O O O O O O B-Code_Block I-Code_Block I-Code_Block I-Code_Block I-Code_Block I-Code_Block O O O O B-Class O O O O O O