<base_category_list>
 <portal_type id="Application Id Generator">
  <item>specialise</item>
 </portal_type>
 <portal_type id="Conceptual Id Generator">
  <item>specialise</item>
 </portal_type>
 <portal_type id="Trash Bin">
  <item>causality</item>
 </portal_type>
 <portal_type id="Workflow Transition Variable">
  <item>causality</item>
 </portal_type>
</base_category_list>