XML replace Value

Transact-SQL
1

I'm trying to replace values from the below xml in sql server. It's bit complex due to namespace I guess. Can anyone please help me?After the update the tag should look like - Removed

Below is the sample xml -

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
  <s:Header>
    <Action xmlns="http://schemas.microsoft.com/ws/2005/05/addressing/none" s:mustUnderstand="1">http://tempuri.org/updateTaskContent</Action>
  </s:Header>
  <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <updateTaskContent xmlns="http://www.test.com.au/services">
      <Transaction xmlns="http://www.test.com.au/XMLSchema/Task/Update">
        <taskToUpdateTransactionBody>
          <TransactionContentDetails>
            <TransactionIdentifier>AU8735645</TransactionIdentifier>
            <TransactionCode>updateTask</TransactionCode>
            <TransactionData>
              <taskToUpdate>
                <TaskToUpdateDetails>
                  <TaskIdentifier>tREF53453434</TaskIdentifier>
                  <PTObjectionReportResponse>
                    <Document>
                      <DocumentType>Test Specification</DocumentType>
                      <DocumentName>TestDoc1.pdf</DocumentName>
                      <DocumentData>Test123456</DocumentData>
                    </Document>
                    <Document>
                      <DocumentType>Test Amend Specification</DocumentType>
                      <DocumentName>TestDoc3.pdf</DocumentName>
                      <DocumentData>Test098764546</DocumentData>
                    </Document>
                    <Document>
                      <DocumentType>Test Objection Response</DocumentType>
                      <DocumentName>TestDoc56.pdf</DocumentName>
                      <DocumentData>hfgfgfgfggfgfgf</DocumentData>DocumentData>
                    </Document>
                   </PTObjectionReportResponse>
                </TaskToUpdateDetails>
              </taskToUpdate>
            </TransactionData>
          </TransactionContentDetails>
        </taskToUpdateTransactionBody>
      </Transaction>
    </updateTaskContent>
  </s:Body>
</s:Envelope>
2

what do you want the end result to look like? Don't know what you want updated. Also, the xml is wrong

hfgfgfgfggfgfgfDocumentData> remove the second DocumentData