Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/libraries/HaXml/tests/xml-conformance/ibm/not-wf/P62/ibm62n07.dtd
<?xml version="1.0" encoding='UTF-8'?> <!-- DTD for Production 62--> <![ INCLUDE [ <!ELEMENT tiger EMPTY> <!ELEMENT animal ANY> <!--Negative test with pattern7 of P62--> <!--Missing closing sequence.-->