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.

Which channel in youtube has the most subscribers?
What was the Youtube channel with the most subscribers as of December 23, 2013?

Who constructed the suez canal and when was it finished?
Who is the company that constructed the suez canal?

What is the capital of isle of man?

What is the current capital of Isle of Man?