<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<!-- Above is XMLDecl -->
<!DOCTYPE animal [
<!ELEMENT animal (cat|tiger|leopard)+>
<!ELEMENT cat EMPTY>
<!ELEMENT tiger (#PCDATA)>
<!ELEMENT leopard ANY>
<!ELEMENT small EMPTY>
<!ELEMENT big EMPTY>
<!ATTLIST tiger color CDATA #REQUIRED>
]>
<!-- Above is DTD -->
<?music "Here is a PI" ?> 
<animal>
   <cat/>
   <tiger color="white">This is a white tiger in Mirage!!</tiger>
   <cat/>
   <leopard>
      <small/>
      <big/>
   </leopard>
</animal>
<!-- Above is element animal -->