ibm68n08.xml

<!DOCTYPE root 
[
<!ELEMENT root (#PCDATA)>
<!ATTLIST root att CDATA #IMPLIED>
<!ENTITY aaa "aString">
<!NOTATION JPGformat SYSTEM "JPGFormat">
<!ENTITY aImage SYSTEM "image.jpg" NDATA JPGformat>
]>
<root>unparsed entity reference in the wrong place &aImage;</root>