1 XMLVALIDATE ( 2! DOCUMENT 3 XML-expression 4? %XML-validate-according-to-clause 5 ) XML-validate-according-to-clause 1 ACCORDING TO XMLSCHEMA 2 ID XML-schema-name 2.0 URI XML-uri1 2.0 NO NAMESPACE 2.1? LOCATION XML-uri2 3? %XML-valid-element-clause XML-valid-element-clause 1? 1 NAMESPACE XML-uri3 1 NO NAMESPACE 2 ELEMENT XML-element-name