<?xml version="1.0" encoding="UTF-8"?>

<foo>
    <!-- def='NT-Char'--><!-->Char</nt>* ']]&gt;' <nt def='NT-Char'>Char</nt>*))
']]&gt;'</rhs>
<com>CDATA sections</com>
<rhs>| '&lt;!DOCTYPE'
(<nt def="NT-Char">Char</nt> - ('[' | ']'))+
('['
<nt def="NT-simpleDTD">simpleDTD</nt>*
']')? '&gt;'</rhs>
<com>doc type declaration</com>
<prod id="NT-simpleDTD"><lhs>simpleDTD</lhs>
<rhs>'&lt;!&como;'
(<nt def='NT-Char'>Char</nt>* -
(<nt def='NT-Char'>Char</nt>* '&comc;' <nt def='NT-Char'>Char</nt>*))
'&comc;&gt;'</rhs>-->
</foo>
