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.

Ex Input:
When did the welfare system began in the us?

Ex Output:
When did the first major federal welfare agency began in the us?


Ex Input:
Who was responsible for keeping british ships out of the waterways off the coast of virginia?

Ex Output:
Who is the group that was responsible for keeping british ships out of the waterways off the coast of virginia?


Ex Input:
Where is comic con held in san diego?

Ex Output:

Where was comic con held in San Diego for the initial gathering in 1970?