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 britain give hong kong to china?
answer:
At what time did britain give hong kong to china?


question:
When did american beauty/american psycho come out?
answer:
When did the album American Beauty/American Psycho come out?


question:
When was the first pc sold to the public?
answer:

When was the first PC considered to be the first true "personal computer" sold to the public?