<?xml version='1.0' ?>
<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope">
  <env:Header>
    <env:NotUnderstood qname="test:Unknown"
       xmlns:test="http://example.org/ts-tests" />
  </env:Header>
  <env:Body>
    <env:Fault>
      <env:Code>
        <env:Value>env:MustUnderstand</env:Value>
      </env:Code>
      <env:Reason>
        <env:Text xml:lang="en-US"> Header not understood </env:Text>
      </env:Reason>
    </env:Fault>
  </env:Body>
</env:Envelope>