6. The method of claim 3 wherein the adjusting includes, when an ancestor classification is not in the search results but at least one of its descendent classifications is in the search results, adding the ancestor classification to the search results.
6. The method of claim 3 wherein the adjusting includes, when an ancestor classification is not in the search results but at least one of its descendent classifications is in the search results, adding the ancestor classification to the search results. 7. The method of claim 6 including removing a descendent classification from the search results.