{
    if (instanceValue == null) return null;
    List<?> list = (List<?>)instanceValue;
    if (list.isEmpty()) return "";
    StringBuffer result = new StringBuffer();
    for (Iterator<?> i = list.iterator(); i.hasNext(); )
    {
      result.append(convertENTITYToString(XMLTypePackage.Literals.ENTITY, i.next()));
      result.append(' ');
    }
    return result.substring(0, result.length() - 1);
  }