libopc/third_party/libxml2-2.7.7/test/schematron/zvon14_0.xml

<AAA>
     <BBB>
          <CCC/>
     </BBB>
     <CCC/>
     <DDD>
          <CCC/>
          <EEE>
               <CCC/>
          </EEE>
     </DDD>
</AAA>