instruction:
In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to provide one question which clarifies the input question and it has one unique answer, and also provide an answer to the generated question. Generated question and answer should be separated with a new line.
question:
Who is rated the best goalkeeper in the world?
answer:
According to IFFHS and FIFA, who is rated the best goalkeeper in the world in 2017? 
 Gianluigi "Gigi" Buffon


question:
When is the first us done in pregnancy?
answer:
When is the first ultrasound done in pregnancy, for patients that want genetic testing? 
 11 weeks - 13 weeks 6 days gestation


question:
What date did the second world war end?
answer:

What date do most countries recognize as the date the second world war ended in Europe? 
 Victory in Europe Day