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:
Where is the x factor final 2017 filmed?
answer:
In what building is the x factor final 2017 filmed?


question:
When did the beatles stop touring and why?
answer:
When did the Beatles stop touring?


question:
Where is the desert located in the usa?
answer:

Where is the chihauhuan desert located in the usa?