docs: def _parse_entities(self):
          """enrich the babelfied data with the text an the isEntity items
          set self._entities with the enriched data
          """
          entities = list()
  
          for result in self._data:
              entity = dict()
              char_fragment = result.get('charFragment')
              start = char_fragment.get('start')
              end = char_fragment.get('end')
              entity['start'] = start
              entity['end'] = end
              entity['text'] = self._text[start: end+1]
              if sys.version < '3' and isinstance(entity['text'], str):
                  entity['text'] = entity['test'].decode('utf-8')
              entity['isEntity'] = True
              for key, value in result.items():
                  entity[key] = value
              entities.append(entity)
          self._entities = entities