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 does the school year start in sweden?
answer:
When do primary and secondary schools start the school year in Sweden?


question:
Who is playing batman in the justice league movie?
answer:
Who is playing batman in the 2017 justice league movie?


question:
When does this season of the walking dead end?
answer:

When does season 7 of the walking dead end?