Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/libraries/HaXml/tests/xml-conformance/eduni/namespaces/1.0/030.xml
<?xml version="1.0"?> <!-- Reserved prefixes and namespaces: binding another prefix to the xml namespace --> <foo xmlns:yml="http://www.w3.org/XML/1998/namespace"/>