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:
When does major league baseball start the regular season?

Ex Output:
When does the 2017 MLB regular season start?


Ex Input:
Where did the wizard of oz come from?

Ex Output:

Where did inspiration for the 1939 film The Wizard of Oz come from?