--- /dev/null
+<!ELEMENT compatibility (title,program*)>
+
+<!ELEMENT program (location,clicompat?,funccompat?)>
+<!ATTLIST program
+ name CDATA #REQUIRED
+ status (removed|rewritten|renamed|broken|new) #IMPLIED>
+
+<!ELEMENT location (#PCDATA)>
+
+<!ELEMENT clicompat (text?)>
+<!ATTLIST clicompat
+ status (yes|no|limited) #REQUIRED>
+
+<!ELEMENT funccompat (text?)>
+<!ATTLIST funccompat
+ status (yes|no|limited) #REQUIRED>
+
+<!ELEMENT text ANY>
+<!ELEMENT pref (#PCDATA)>
+
+<!ELEMENT title (#PCDATA)>