Question: When is thanksgiving what day is thanksgiving on?
Disambiguated questions and answers: question: What day is thanksgiving on in 2017?
What day is thanksgiving on in 2016?
What day is thanksgiving on in 2015?
answer: November 23 2017
November 23
November 24
November 24 2016
November 26
November 26 2015
Natural Questions answer: the fourth Thursday of November (from the Wikipedia article "Thanksgiving (United States)")