tokens: In that case , use something more like the following , which : ( 1) splits the string apart between every character ; ( 2) uses the characters to fill up a three row matrix ; and then ( 3) extracts the characters in the 3rd row of the matrix .
ner_tags: O O O O O O O O O O O O O O O O O B-Data_Type O O O B-Data_Type O O O O O B-Data_Type O O O O O B-Data_Structure I-Data_Structure O O O O O O O B-Data_Type O O O B-Data_Structure O O B-Data_Structure O