It has nothing to do with the ROSS link but it shows just how great Watson could be at most things that involve natural language processing and more or less simple questions that could easily be cited from various sources.
Wouldn't surprise me if you could ask ROSS or any other legal aid based on Watson to go over a contract and ask if I do X what would happen, since it has access to both legislation and case law it might even could present you with a probabilistic outcome based on previous law suits which involved similar contracts and circumstances.
http://www.rossintelligence.com/