Definition: 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.

Positive Example 1 -
Input: Lucifer how many episodes are in season 3?
Output: How many episodes of season 3 of Lucifer were there, including bonus episodes?

Positive Example 2 -
Input: What is the tallest ride at six flags over Texas?
Output: What is the tallest roller coaster at six flags over Texas 2001?

Negative Example 1 -
Input: Lucifer how many episodes are in season 3?
Output: How many episodes of season 4 of Lucifer were there, including bonus episodes?

Negative Example 2 -
Input: What is the tallest ride at six flags over texas?
Output: What is the tallest roller coaster at six flags over Tempe 2001?

Now complete the following example -
Input: When did they start taking lead out of paint?
Output: 



Output:
When did they start limiting lead paint in France?
When did the League of Nations start efforts to ban lead paint?
When did they start limiting lead paint in the US?
When did they start limiting lead paint in the EU?
When did they start limiting lead paint in Canada?
When did Canadian paint manufacturers start conforming to standards that took lead out of paint?
When did they tighten regulations limiting lead paint in Canada?
When did they start banning most lead based paint in the UK?