<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XMLSPY v5 rel. 3 U (http://www.xmlspy.com) by Craig Vosper (PTC) -->
<!--DTD generated by XMLSPY v5 rel. 3 U (http://www.xmlspy.com)-->
<!ELEMENT FinalTopic (Label, Resource)>
<!ELEMENT Label (#PCDATA)>
<!ELEMENT MainTopic (Label, Resource?, SubTopic*)>
<!ELEMENT Resource (#PCDATA)>
<!ELEMENT SubTopic (Label, Resource?, FinalTopic*)>
<!ELEMENT Tutorials (MainTopic+)>