tokens: One more thing to mention with # == method , is that for the classes that represent elements of ordered sets , you do not implement # == directly , but instead you provide #<=> three-way comparison method, and include Comparable module, which gives you for free methods such as #==, #<, #> , #sort , etc .
ner_tags: O O O O O O B-Function I-Function O O O O O O O O O O O O O O O O O O B-Function I-Function O O O O O O B-Function O O O O O B-Library O O O O O O O O O B-Function I-Function I-Function O B-Function O O O