“At the same time, Watson Discovery Advisor will incorporate Watson question-answering capabilities, optimized for discovery. After people create new insights, they can engage in dialogues with the system to clarify their thinking and test propositions. The idea is that humans will collaborate with machines in new ways that deliver better results than people or computers could produce on their own.”

Cognitive Computing in the New Era of Discovery – A Smarter Planet Blog
https://asmarterplanet.com/blog/2014/08/watson-e-discovery.html