tokens: First we pass the string we want to search , then we use method to_array() so we can create the array from the string , then you need to choose which mode you want to use .
ner_tags: O O O O B-Data_Type O O O O O O O O O B-Function O O O O O B-Data_Structure O O B-Data_Type O O O O O O O O O O O O O