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: When did the ussr agree to a unified germany inside of nato?

Output: When did Gorbachev express agreement with a unified Germany inside of NATO?


Input: Consider Input: When did it become a tradition to stand for the national anthem?

Output: When did it become a tradition to stand at attention for the national anthem?


Input: Consider Input: When was i look at the world written?


Output: When did U2 start writing songs on the album All That You Can't Leave Behind, which included the song i look at the world written?