<!DOCTYPE acb SYSTEM "http://example.org/acb.dtd">
<acb>
<a>Let's use predefined entites & < ></a>
<c/>
<b>Let's use a DTD defined entity &bent;</b>
</acb>
<!DOCTYPE acb SYSTEM "http://example.org/acb.dtd">
<acb>
<a>Let's use predefined entites & < ></a>
<c/>
<b>Let's use a DTD defined entity &bent;</b>
</acb>