<?xml version="1.0"?>
<!DOCTYPE root 
[
<!ELEMENT root (#PCDATA)>
<!ATTLIST root att CDATA #IMPLIED>
<!--* Wrong beginning sequence in NotationDecl *-->
<NOTATION JPGformat PUBLIC "-//JPG//DTD//JPGFormat">
<!ENTITY aImage SYSTEM "image.jpg" NDATA JPGformat>
]>
<root/>