<!DOCTYPE DOC [ <!ELEMENT DOC - O (P+)> <!ELEMENT P - O (#PCDATA|L)+ -- Paragraphs --> <!ELEMENT L - O (I+) -- Lists --> <!ELEMENT I - O (P+) -- List items --> ]> <DOC> <P>Introductory paragraph</P> <P>Second paragraph : <L> <I><P>First case</P><P>Second paragraph in item</P></I> <I><P>Second case : <L> <I><P>First sub-case</P></I> <I><P>Second sub-case</P></I> </P> </I> Continuation of second paragraph </P> </DOC>[Prev][Next]