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 does the school year start in sweden?

Ex Output:
When do primary and secondary schools start the school year in Sweden?


Ex Input:
When did the earliest organisms appear on earth?

Ex Output:
When is the earliest time that the earliest organisms possibly appear on earth?


Ex Input:
When did great britain give back hong kong?

Ex Output:

At what time did great britain give back hong kong?