<key_list>
 <key>item_device_relative_url | category,category,catalog/relative_url/z_related_item_aggregate</key>
 <key>item_project_relative_url | category,category,catalog,catalog/relative_url/z_related_item_destination_project</key>
 <key>item_resource_uid | item/resource_uid/z_related_item</key>
 <key>item_source_relative_url | category,category,catalog,catalog/relative_url/z_related_item_source</key>
 <key>item_variation_text | item/variation_text/z_related_item</key>
</key_list>