tokens: The pyparsing wiki example SimpleBool.py ( http://pyparsing.wikispaces.com/file/view/simpleBool.py ) includes an example of attaching parse actions to convert parsed tokens into callable class instances that simplify evaluating the results .
ner_tags: O B-Library O O B-File_Name O O O O O O O O O O O O O O O O O O O O O O O O