<!DOCTYPE test [
  <!ATTLIST p id ID #REQUIRED>
]>
<test>
  <p id="p1">
     <t>
       <p/>
       <q>If you only see the q element the test worked</q>
       <r>bad!</r>
     </t>
     <r/> <u>If you see me, the test failed</u>
   </p>
</test>

