<?xml version='1.0'?>
<!DOCTYPE trickycode [
<!ELEMENT trickycode (#PCDATA) >
<!ENTITY % trickyline '&#37;trickytext;'>
<!ENTITY % trickytext '&#60;!ENTITY trickyword "flaky" >' >
%trickyline;
]>
<trickycode>This sentence demonstrates &trickyword; code.</trickycode>

Note: Fragment for illustration purposes only

