Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/libraries/HaXml/tests/xml-conformance/ibm/invalid/P56/out/ibm56i13.xml
<test> <landscape sun="parsedentity"></landscape> In an attribute declaration, values of type ENTITY match the Name production and the ENTITY value matches the name of a parsed entity declared in the DTD. </test>