--- a/microdata-rdf/index.html	Sun Sep 02 22:33:15 2012 -0600
+++ b/microdata-rdf/index.html	Mon Sep 03 08:39:22 2012 -0600
@@ -771,8 +771,8 @@
 <pre class="example" data-transform="updateExample">
 <!--
 @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
 @prefix schema: <http://schema.org/> .
-@prefix owl: <http://www.w3.org/2002/07/owl#> .
 
 <> md:item (
   [ a schema:Product;
@@ -780,7 +780,7 @@
     schema:name "Laser Printer"]
 ) .
 
-schema:additionalProperty owl:subPropertyOf rdf:type .
+schema:additionalProperty rdfs:subPropertyOf rdf:type .
 -->
 </pre>
 
@@ -789,16 +789,16 @@
 <pre class="example" data-transform="updateExample">
 <!--
 @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
 @prefix schema: <http://schema.org/> .
-@prefix owl: <http://www.w3.org/2002/07/owl#> .
-
+\
 <> md:item (
   [ a schema:Product, <http://www.productontology.org/id/Laser_printer>;
     schema:additionalType <http://www.productontology.org/id/Laser_printer> .
     schema:name "Laser Printer"]
 ) .
 
-schema:additionalProperty owl:subPropertyOf rdf:type .
+schema:additionalProperty rdfs:subPropertyOf rdf:type .
 -->
 </pre>