<grammar xmlns=“relaxng.org/ns/structure/1.0” datatypeLibrary=“www.w3.org/2001/XMLSchema-datatypes”>
<define name="executionhandler"> <element name="executionhandler" ns="http://cpee.org/ns/properties/2.0"> <data type="string"> <param name="pattern">[a-zA-Z]+</param> </data> </element> </define>
</grammar>