Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/libraries/HaXml/tests/xml-conformance/ibm/valid/P82/out/ibm82v01.xml
<!DOCTYPE root [ <!NOTATION JPGformat PUBLIC '-//image//notreal'> ]> <root entatt1="unparsed1">test PublicID in P82</root>