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 rolling stones play in hyde park?
answer:
When did the Rolling Stones play in Hyde Park for free?


question:
Who won the 2018 andre the giant battle royale?
answer:
Who won the  2018 Andre the Giant Battle Royale at WrestleMania 34?


question:
Who won the great food truck race in 2017?
answer:

What truck won the Great Food Truck Race in 2017?