The response

<SOAP-ENV:Envelope 
 xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
   <SOAP-ENV:Body>
      <RetrieveIncidentKeysListResponse message="Success" 
       query="" returnCode="0" schemaRevisionDate="2007-04-14"  
       schemaRevisionLevel="1" status="SUCCESS" 
       xsi:schemaLocation="http://servicecenter.peregrine.com/PWS 
       http://<sm server>.americas.hpqcorp.net:13701/sc62server/ws/
       Incident.xsd" 
       xmlns="http://servicecenter.peregrine.com/PWS" 
       xmlns:cmn="http://servicecenter.peregrine.com/PWS/Common" 
       xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
         <keys>
            <IncidentID type="String">IM10055</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10063</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10070</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10077</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10090</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10115</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10116</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10117</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10118</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10119</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10120</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10121</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10122</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10123</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10124</IncidentID>
         </keys>
         <keys>
            <IncidentID type="String">IM10125</IncidentID>
         </keys>
      </RetrieveIncidentKeysListResponse>
   </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

Note The field names in such directly entered query strings reflect either the actual field names (such as update.time) or the Caption (such as UpdateTime). Clients who want to submit an expert/advanced query should use either the query attribute on the <keys> element or the query attribute on the <instance> element. Both are provided because some requests do not define any <instance> element. During SOAP API request processing, the server will look first at the <keys> element and, if there is no query attribute there, will look at the <instance> element. Query attributes defined on any other element are never consulted during inbound SOAP request processing.