+# Minimal xhtml vocab to make validating my rdfa pages cleaner
+
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix : <http://www.w3.org/1999/xhtml> .
+@prefix owl: <http://www.w3.org/2002/07/owl#> .
+@prefix rdfa: <http://www.w3.org/ns/rdfa#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+
+<http://www.w3.org/1999/xhtml/vocab>
+ a owl:Ontology ;
+ <http://www.w3.org/1999/xhtml/vocab#stylesheet> <http://www.w3.org/StyleSheets/TR/base.css> .
+
+<http://www.w3.org/1999/xhtml/vocab#stylesheet>
+ a rdf:Property ;
+ rdfs:comment """stylesheet refers to a resource
+ serving as a stylesheet for a resource. """^^xsd:string ;
+ rdfs:member <http://www.w3.org/1999/xhtml/vocab#relrev-properties> ;
+# rdfa:term "stylesheet" ;
+# rdfa:uri "http://www.w3.org/1999/xhtml/vocab#stylesheet"
+ .