17. The method according to claim 13 , further comprising generating a context stack that includes one or more contexts that are selected based on the query.
17. The method according to claim 13 , further comprising generating a context stack that includes one or more contexts that are selected based on the query. 18. The method according to claim 17 , wherein the one or more contexts are generated based on applying prior probabilities or fuzzy possibilities to (i) keyword matching, (ii) user profiles, (iii) a dialog history, or any combination of (i) to (iii).