message queryCategoriesResponse
parts 
response
element business:queryCategoriesResponse
used by 
Operation queryCategories in PortType BusinessService
source 
<wsdl:message name="queryCategoriesResponse">
  <wsdl:part name="response" element="business:queryCategoriesResponse"/>
</wsdl:message>

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