Definition of “natural language interface”: Expand the first paragraph to include “typed language” as a common input method, by adding to this sentence, as noted here in brackets: “The user provides input as sentences via speech [add: , typed language,] or some other input, and the system generates responses in the form of sentences delivered by speech, text or another suitable modality.”
Bullet about chatbots: Add 2 sentences to the end of this paragraph: “Not all chatbots are speech-based. But even text-based chatbots can let people use speech via a keyboard dictation function.”
[Added on behalf of COGA TF]