In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to write a question that clarifies the given question in such a way that the generated question has one unique answer.

When is it mothering sunday in the uk?
When is it mothering sunday in the uk in 2017?

What is the largest coin in the us?
What is the largest coin ever minted in the us?

When did presidents start running with vice presidents?

At what point in history did presidents start running with vice presidents?