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:
Who achieved a victory at the battle of marathon?

Ex Output:
What country achieved a victory at the battle of marathon?


Ex Input:
When did the voting age change from 21 to 18?

Ex Output:
When did the debate begin to lower the voting age from 21 to 18?


Ex Input:
Who did the mycenaeans fight in the trojan war?

Ex Output:

Who were the people the mycenaeans fought in the trojan war?