<grammar xmlns=“relaxng.org/ns/structure/1.0” datatypeLibrary=“www.w3.org/2001/XMLSchema-datatypes”>
<include href="simple.rng"/> <define name="attributes"> <element name="attributes" ns="http://cpee.org/ns/properties/2.0"> <zeroOrMore> <ref name="simple"/> </zeroOrMore> </element> </define>
</grammar>