<element name="balancedString" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.thaiopensource.com/relaxng/datatypes/sample"> <data type="balancedString"/> </element>
<element name="balancedString" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.thaiopensource.com/relaxng/datatypes/sample"> <data type="balancedString"/> </element>