code: def load(self, lemmatizer_path):
          
          self.lemmatizer = {}
          with io.open(lemmatizer_path, encoding='utf-8') as data_file:
              raw = json.load(data_file)
              for entry in raw:
                  self.lemmatizer[entry["Form"]] = entry["Lemmas"]
          self.apply_blacklist()
docs: This methods load the IWNLP.Lemmatizer json file and creates a dictionary
           of lowercased forms which maps each form to its possible lemmas.