code: public String returnArg(String key) {
         SeLionElement element = HtmlSeLionElementSet.getInstance().findMatch(key);
          if (element == null) {
              return key;
          }
          if (!element.isUIElement()) {
              return key;
          }
          return key.substring(0, key.indexOf(element.getElementClass()));
      }
docs: DO NOT tamper with this method