+<!ELEMENT XML_File_ID (#PCDATA)>
+<!ELEMENT heading (#PCDATA)>
+<!ELEMENT category (#PCDATA)>
+<!ELEMENT sport (#PCDATA)>
+<!ELEMENT title (#PCDATA)>
+<!ELEMENT rank (#PCDATA)>
+<!ELEMENT Player_Team (#PCDATA)>
+<!ELEMENT Int (#PCDATA)>
+<!ELEMENT Yards (#PCDATA)>
+<!ELEMENT Long (#PCDATA)>
+<!ELEMENT TD (#PCDATA)>
+<!ELEMENT listing ( ( rank, Player_Team, Int, Yards, Long, TD ) )>
+<!ELEMENT time_stamp (#PCDATA)>
+<!ELEMENT message ( ( XML_File_ID, heading, category, sport, title, listing*, time_stamp ) )>