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 way you look tonight come out?
answer:
When did Fred Astaire's version of The Way You Look Tonight come out?


question:
When did the first hobbit movie come out?
answer:
When did The Hobbit: An Unexpected Journey first have its premiere in New Zealand?


question:
When did china's one child policy began?
answer:

When was China's one-child policy introduced?