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 Q]: When was the cathedral of santiago de compostela built?
[EX A]: When did construction start on the cathedral of santiago de compostela?

[EX Q]: The portion of the uterine endometrium that is shed every month is the?
[EX A]: What is the name of the portion of the uterine endometrium that is shed every month?

[EX Q]: Who sings the song that's what i like about you?
[EX A]:
Who sings the 1991 song that's what I like about you?