Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/libraries/HaXml/tests/xml-conformance/ibm/invalid/P50
--rw-r--r-- fernan sys 194 Sep 19 2009 ibm50i01.dtd --rw-r--r-- fernan sys 226 Sep 19 2009 ibm50i01.xml d-rwxr-xr-x fernan sys 0 Jul 15 2018 out