Question: Who won the men's college basketball championship last year?
Disambiguated questions and answers: question: What team won the 2017 NCAA Championship?
What team won the 2016 NCAA Championship?
What team won the 2015 NCAA Championship?
What head coach won the 2017 NCAA Championship?
What head coach won the 2016 NCAA Championship?
What head coach won the 2015 NCAA Championship?
answer: North Carolina
Villanova
Duke
Roy Williams
Jay Wright
Mike Krzyzewski
Natural Questions answer: North Carolina (from the Wikipedia article "List of NCAA Division I men's basketball champions")