<?xml version="1.0" ?>
     <!DOCTYPE internalentities [
     	<!ELEMENT internalentites (#PCDATA)>
     	<!ATTLIST internalentities 
     		test (CDATA) #IMPLIED>
     	<!ATTLIST internalentities 
     		test2 (A|B) #IMPLIED>
     	<!ATTLIST internalentities a NOTATION (n1|n2) #IMPLIED>
     	<!NOTATION n1 SYSTEM "http://www.w3.org/">
     	<!NOTATION n2 SYSTEM "http://www.w3.org/">
     
     	<!ENTITY simple 'simple entity' >
     	<!ENTITY simple2 'another simple entity'>
     	<!ENTITY anotation SYSTEM "http://www.foo.org/image.gif" NDATA n1 >
     
     ]>
     
     <internalentities test="boo">&simple; &simple2;
     </internalentities>