Command language interface (CLI) is one of the oldest UI. On the other hand, although people have aspired to have a natural language interface (NLI) almost as long as we had CLI, NLI has not been practical for general tasks for a long time. What is your assessment for the future of NLI and CLI? Will the advance of NLI eliminate the need for CLI? What about audio menus, will they be replaced by auditory NLI?