+<!ELEMENT XML_File_ID (#PCDATA)>
+<!ELEMENT heading (#PCDATA)>
+<!ELEMENT category (#PCDATA)>
+<!ELEMENT sport (#PCDATA)>
+<!ELEMENT title (#PCDATA)>
+<!ELEMENT Games_Played (#PCDATA)>
+<!ELEMENT Total_Points (#PCDATA)>
+<!ELEMENT Average (#PCDATA)>
+<!ELEMENT Listing ( ( Games_Played, Total_Points, Average ) )>
+<!ELEMENT time_stamp (#PCDATA)>
+<!ELEMENT message ( ( XML_File_ID, heading, category, sport, title, Listing*, time_stamp ) )>
+
+<!ATTLIST Listing Rank CDATA #REQUIRED>
+<!ATTLIST Listing Team CDATA #REQUIRED>