<?xml version="1.0"?>
<!DOCTYPE doc [
<!ELEMENT doc EMPTY>
<!ATTLIST doc defatt (0 | 1) "0">
<!ATTLIST doc xmlns:tst CDATA #FIXED "http://example.org">
<!ATTLIST doc tst:att (0 | 1) "1">
]>
<doc xmlns:tst="http://example.org" att="1"/>