This would very much depend on what you were programming in.
Here is a webservice that I use for testing.
HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
<?xml version="1.0" encoding="utf-8"?>
Here is the code that call the web service. This code is taken from ASP .
SET objSoapClient = Server.CreateObject("MSSOAP.SoapClient30")
objSoapClient.ClientProperty("ServerHTTPRequest") = True
' needs to be updated with the url of your Web Service WSDL and is
' followed by the Web Service name
; & application("WebService") & "/WebServices/Reports/Report.asmx?WSDL", "Report")
objSoapClient.ConnectorProperty("Timeout") = 900000
' use the SOAP object to call the Web Method Required
NewMessage = objSoapClient.Display("This is a test.")
ProcessMonthlyReport = "<DIV style='OVERFLOW: scroll; WIDTH: 100%; HEIGHT: 100%;'>" & NewMessage & "</DIV>"
As you can see the result is returned into NewMessage (Text = "This is a test.") and it is then placed within a DIV that is sent back to the browser.
If you were using .NET this would be different as you could use the same object model that the web service returns.
Let me know if this helps.