docs: public Label newLabelFromString(String labelStr) {
      int first = labelStr.indexOf(divider);
      int second = labelStr.lastIndexOf(divider);
      if (first == second) {
        return new WordLemmaTag(labelStr.substring(0, first), Morphology.stemStatic(labelStr.substring(0, first), labelStr.substring(first + 1)).word(), labelStr.substring(first + 1));
      } else if (first >= 0) {
        return new WordLemmaTag(labelStr.substring(0, first), labelStr.substring(first + 1, second), labelStr.substring(second + 1));
      } else {
        return new WordLemmaTag(labelStr);
      }
    }