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.

Input: Consider Input: Who achieved a victory at the battle of marathon?

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


Input: Consider Input: Who appointed the comptroller and auditor general of india?

Output: What officeholder appoints the Comptroller and Auditor General of India?


Input: Consider Input: Who was president of the united states in 1963?


Output: Who was president of the United States until November 22, 1963?