tokens: Once you 've actually got it working , the Playground wo n't actually run your code successfully because it loops forever and there are a zillion goroutines running and I guess the Playground does n't like that ( overusing resources ) .
ner_tags: O O O O O O O O O B-Application O O O O O O O O O O O O O O O O O O O O O O B-Application O O O O O O O O O