@@ -0,0 +1,13 @@
+<grammar xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
+
+ <define name="externalImage">
+ <element name="externalImage">
+ <element name="url">
+ <text/>
+ </element>
+ <element name="lang">
+ </define>
+</grammar>
@@ -0,0 +1,7 @@
+ <include href="externalImage.rng"/>
+ <start>
+ <ref name="externalImage"/>
+ </start>