<?xml version='1.0' encoding='us-ascii'?> <!-- DTD for a simple "slide show". --> <!ELEMENT slideshow (slide+)> <!ATTLIST slideshow title CDATA #REQUIRED date CDATA #IMPLIED author CDATA "unknown" > <!ELEMENT slide (image?, title, item*)> <!ATTLIST slide type (tech | exec | all) #IMPLIED > <!ELEMENT title (#PCDATA)> <!ELEMENT item (#PCDATA | item)* > <!ELEMENT image EMPTY> <!ATTLIST image alt CDATA #IMPLIED src CDATA #REQUIRED type CDATA "image/gif" >