Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/libraries/HaXml/tests/xml-conformance/ibm/not-wf/P80/ibm80n04.xml
<?xml version="1.0" "UTF-8"encoding=?> <!--* wrong ordering in above EncodingDecl *--> <!DOCTYPE root [ <!ELEMENT root (#PCDATA)> <!ATTLIST root att CDATA #IMPLIED> ]> <root/>