Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/libraries/HaXml/tests/xml-conformance/ibm/not-wf/P28/ibm28n03.xml
<?xml version="1.0" encoding='UTF-8'?> <!DOCTYPE SYSTEM "ibm28n01.dtd" animal [ <!ATTLIST animal color CDATA #REQUIRED> ]> <!-- Wrong ordering ExternalID Name [ ] in doctypedecl --> <animal color="yellow"/>