Question: Where is the u21 euro championships being held?
Disambiguated questions and answers: question: Where is the UEFA European U-21 Championship being held in 2019?
Where was the UEFA European U-21 Championship held in 2017?
Where was the UEFA European U-21 Championship held in 2015?
answer: Italy
Poland
Czech Republic
Natural Questions answer: Poland (from the Wikipedia article "2017 UEFA European Under-21 Championship")