/** The key of the message: Term */
    public static final String LABELS_TERM = "{labels.term}";

    /** The key of the message: Fields */
    public static final String LABELS_FIELDS = "{labels.fields}";

    /** The key of the message: Extended Query */
    public static final String LABELS_ex_q = "{labels.ex_q}";

    /** The key of the message: LDAP URL */