4. The method of claim 1 , further comprising associating a second sub context, of the basic context, with a second portion of the speech based document, the second sub context comprising a third lexicon and a third language model, and recognizing speech corresponding to the second portion using the second sub context.
4. The method of claim 1 , further comprising associating a second sub context, of the basic context, with a second portion of the speech based document, the second sub context comprising a third lexicon and a third language model, and recognizing speech corresponding to the second portion using the second sub context. 5. The method of claim 4 , wherein the second sub context further comprises a third grammar.