For example, in one particular case, the annotated SearchTerm is "book stores", for which the ASR 1-best-based parser returned "books" (due to ASR error) as the SearchTerm, while the WCN-based parser identified "banks" as the SearchTerm.
the returned results from the search engine using the 1-best-based parser were more relevant compared to the results returned by the WCN-based parser.