<!DOCTYPE test
 [ <!ELEMENT test - - (t*)>
   <!ELEMENT t - - ((name|op),arg)>
   <!ELEMENT name o o (#PCDATA)>
   <!ELEMENT op   - - (#PCDATA)>
   <!ELEMENT arg  - - (#PCDATA)>
   <!ELEMENT desc  o o (#PCDATA)>

   <!ENTITY end-t ENDTAG "t">
   <!ENTITY beg-arg STARTTAG "arg">
   <!ENTITY end-arg ENDTAG "arg">

   <!SHORTREF in.t
	'&#RE'  end-t
        '('     beg-arg>
   <!SHORTREF in.arg
	')'	end-arg>

   <!USEMAP in.t t>
   <!USEMAP in.arg arg>
 ]>

<test>
<t>n(a)
</test>