docs: private static String wordShapeChris4(String s, boolean omitIfInBoundary, Collection<String> knownLCWords) {
      int len = s.length();
      if (len <= BOUNDARY_SIZE * 2) {
        return wordShapeChris4Short(s, len, knownLCWords);
      } else {
        return wordShapeChris4Long(s, omitIfInBoundary, len, knownLCWords);
      }
    }