4. The method of claim 1 , wherein processing the user speech input includes recognizing one or more of the words in the subset of words in a predetermined time interval.
4. The method of claim 1 , wherein processing the user speech input includes recognizing one or more of the words in the subset of words in a predetermined time interval. 5. The method of claim 4 , wherein all words in the subset are determined to be recognized within the predetermined time interval.