1<?xml version="1.0" encoding="UTF-8"?>
2<foo>
3<!-- def='NT-Char'--><!-->Char</nt>* ']]&gt;' <nt def='NT-Char'>Char</nt>*))
4']]&gt;'</rhs>
5<com>CDATA sections</com>
6<rhs>| '&lt;!DOCTYPE' 
7(<nt def="NT-Char">Char</nt> - ('[' | ']'))+
8('[' 
9<nt def="NT-simpleDTD">simpleDTD</nt>*
10']')? '&gt;'</rhs>
11<com>doc type declaration</com>
12<prod id="NT-simpleDTD"><lhs>simpleDTD</lhs>
13<rhs>'&lt;!&como;' 
14(<nt def='NT-Char'>Char</nt>* - 
15(<nt def='NT-Char'>Char</nt>* '&comc;' <nt def='NT-Char'>Char</nt>*))
16'&comc;&gt;'</rhs>-->
17</foo>
18