tokens: In this case , if you want to have a clear and distinct way to access each member of an array , you do n't need different pointer names , just use int constants for indexes of the array - ( declared in C macros , or in an enum for example )
ner_tags: O O O O O O O O O O O O O O O O O O O O B-Data_Structure O O O O O O B-Data_Type O O O O O O O O O O B-Data_Structure O O O O B-Language O O O O O O O O O