how to extract specific xml tag value in soap message?

Quote:

AttributeAssignment

Quote:

XML

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope">
- <SOAP-ENV:Header>
- <Delivery>
  <Src>/AA/BB/CC</Src>
  <Dest>/AA/BB/CC/DD</Dest>
  <Reply />
  </Delivery>
  <MTXMLMsg MsgType="REPLY" />
  </SOAP-ENV:Header>
- <SOAP-ENV:Body>
- <Response>
- <Results xmlns="http://xacml.aa.web.com">
- <Result>
  <Decision>Permit</Decision>
- <Status>
  <StatusCode Value="urn:oasis:names:tc:xacml:1.0:status:ok" />
  </Status>
- <Obligations>
- <Obligation FulfillOn="Deny" ObligationId="PutInCache">
  <AttributeAssignment AttributeId="resource" DataType="http://www.w3.org/2001/XMLSchema#string">Appgrp:App: grp2</AttributeAssignment>
  </Obligation>
- <Obligation FulfillOn="Deny" ObligationId="PutInCache">
  <AttributeAssignment AttributeId="resource" DataType="http://www.w3.org/2001/XMLSchema#string">Appgrp:App: grp1</AttributeAssignment>
  </Obligation>
- <Obligation FulfillOn="Deny" ObligationId="PutInCache">
  <AttributeAssignment AttributeId="resource" DataType="http://www.w3.org/2001/XMLSchema#string">Appgrp:App:grp1: subgrp1</AttributeAssignment><pre><pre lang="text"><pre lang="HTML">

</Obligation>
</Obligations>
</Results>
</Result>
</Response>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>/blockquote>