instruction:
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.
question:
When did the welfare system began in the us?
answer:
When did the first major federal welfare agency began in the us?


question:
The real housewives of atlanta season 10 cast?
answer:
Who is in the main cast of the real housewives of Atlanta, season 10?


question:
When does the revolutionary war start and end?
answer:

When does the American Revolutionary War start?