sgmls: SGML error at test006.sgm, line 11 in declaration parameter 5:
       Duplicate specification occurred for "&#RE;"; duplicate ignored
sgmls: SGML error at test006.sgm, line 11 in declaration parameter 6:
       MDC delimiter (>) expected; following text may be misinterpreted
sgmls: SGML error at test006.sgm, line 13 at "<":
       Invalid character(s) ignored; attempting to resume DOCTYPE subset
sgmls: Warning at test006.sgm, line 28 in declaration parameter 3:
       Duplicate specification occurred for "P"; duplicate ignored
