<?xml version='1.0' ?>
<!DOCTYPE env:Envelope SYSTEM "env.dtd"[]>
<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope"> 
  <env:Body>
    <test:echoOk xmlns:test="http://example.org/ts-tests">
      foo
    </test:echoOk>
 </env:Body>
</env:Envelope>