16. The computer-readable medium of claim 15 , wherein the instructions further comprise generating the utterance using two or more of a pen input subsystem, a computer vision input subsystem, a haptic input subsystem, a gaze input subsystem and a body motion input subsystem.
15. A tangible computer-readable medium storing instructions for controlling a computing device to classify and represent information, the instructions comprising: recognizing an utterance containing information; converting the information into at least one classification scheme, each classification scheme comprising a sequence of symbols including a SEM placeholder symbol for specific content of the utterance, wherein each symbol identifies an attribute of the information contained in the utterance, and wherein the specific content is mapped to the SEM placeholder symbol and other specific attributes are mapped to themselves; and outputting the classification scheme.