Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/libraries/HaXml/tests/xml-conformance/ibm/xml-1.1/not-wf/P77/ibm77n08.xml
<?xml version='1.1'?> <!DOCTYPE root SYSTEM "ibm77n08.dtd"> <animal>&root_content;</animal>