As described in the Categorization Feedback section of the Narrowing Search Results chapter, ATG Search can return categorization feedback about the returned results in the form of a tree. This functionality is controlled by the following attribute:
<query docSetSort="mode"The mode value can be:
- none—No categorization feedback tree is constructed.
- fulltree—A full categorization tree is returned, with all intervening levels, even if they have no direct connection to the results.
- sparsetree—A categorization tree is returned, but intervening levels that have no direct connection to the results are omitted.
The default value is none.

