20. The speech processing system of claim 19 , further comprising means for extracting conceptual representations of syntactically valid sequences of words.
20. The speech processing system of claim 19 , further comprising means for extracting conceptual representations of syntactically valid sequences of words. 21. The speech processing system of claim 20 , wherein the conceptual representations are used to derive a response to an inquiry represented by one of the syntactically valid sequences of words.