<?xml version="1.0" ?>
<!DOCTYPE html  SYSTEM  "ents.dtd" [ 
<!-- internal DTD subset -->
]>
<html>
<head><title> All about DTDs in XML </title> </head>
<body>
 <h1> All about DTDs in XML </h1>
 <p> XML supports a DTD mechanism very similar to that 
   supported by SGML (the language out of which XML
   was born).  </p>
 <p> But more important than DTDs is food!  &test;
    is a fantastic restaurant, with great food
    and great prices. So if you're looking for
    a great meal and a fun environment, visit
    &test;!</p> 
 <p>Reference to external 
   entity part START--&part;--END </p>
</body>
</html>
