--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!DOCTYPE rdf:RDF [
+ <!ENTITY xsd "http://www.w3.org/2001/XMLSchema#">
+ <!ENTITY rdf "http://www.w3.org/1999/02/22-rdf-syntax-ns#">
+ <!ENTITY rdfs "http://www.w3.org/2000/01/rdf-schema#">
+ <!ENTITY owl "http://www.w3.org/2002/07/owl#">
+ <!ENTITY mediawiki "https://www.mediawiki.org/ontology#">
+]>
+
+<rdf:RDF
+ xmlns:xsd="&xsd;"
+ xmlns:rdf="&rdf;"
+ xmlns:rdfs="&rdfs;"
+ xmlns:owl="&owl;"
+>
+
+ <owl:Ontology rdf:about="&mediawiki;">
+ <rdfs:label>MediaWiki ontology</rdfs:label>
+ <rdfs:comment>The ontology of MediaWiki</rdfs:comment>
+ </owl:Ontology>
+
+ <!--
+ ///////////////////////////////////////////////////////////////////////////////////////
+ //
+ // Classes
+ //
+ ///////////////////////////////////////////////////////////////////////////////////////
+ -->
+
+ <owl:Class rdf:about="&mediawiki;Dump">
+ <rdfs:label>Dump</rdfs:label>
+ <rdfs:comment>A dump of MediaWiki content.</rdfs:comment>
+ </owl:Class>
+
+ <owl:Class rdf:about="&mediawiki;Category">
+ <rdfs:label>Category</rdfs:label>
+ <rdfs:comment>MediaWiki category.</rdfs:comment>
+ </owl:Class>
+
+ <!--
+ ///////////////////////////////////////////////////////////////////////////////////////
+ //
+ // Properties
+ //
+ ///////////////////////////////////////////////////////////////////////////////////////
+ -->
+
+ <owl:ObjectProperty rdf:about="&mediawiki;isInCategory">
+ <rdfs:label>isInCategory</rdfs:label>
+ <rdfs:comment>One category is the parent of another.</rdfs:comment>
+ <rdfs:range rdf:resource="&mediawiki;Category"/>
+ <rdfs:domain rdf:resource="&mediawiki;Category"/>
+ </owl:ObjectProperty>
+
+</rdf:RDF>