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.
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Question: Which channel in youtube has the most subscribers?

Answer: What was the Youtube channel with the most subscribers as of December 23, 2013?


Question: Which fast and furious movies is han in?

Answer: Which Fast and Furious Movies is Han in, with new footage?


Question: When was the gettysburg national military park established?

Answer:
When was the gettysburg national military park established with initial protection?