Question: Who won the us open golf in 2017?
Disambiguated questions and answers: question: Which person won the men's us open golf in 2017?
Which country won the men's us open golf in 2017?
Which person won the women's us open golf in 2017?
Which country won the women's us open golf in 2017?
answer: Brooks Koepka
United States
Park Sung-hyun
South Korea
Natural Questions answer: Brooks Koepka (from the Wikipedia article "2017 U.S. Open (golf)")