message listOrgModelVersionsResponse
parts 
response
element om:listOrgModelVersionsResponse
used by 
Operation listOrgModelVersions in PortType OrgModelService
source  
<wsdl:message name="listOrgModelVersionsResponse">
  <wsdl:part name="response" element="om:listOrgModelVersionsResponse"/>
</wsdl:message>

WSDL documentation generated by XMLSpy WSDL Editor http://www.altova.com/xmlspy