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:
When was the cathedral of santiago de compostela built?

Ex Output:
When did construction start on the cathedral of santiago de compostela?


Ex Input:
The voice of buzz lightyear in toy story?

Ex Output:
Who is the voice of Buzz Lightyear in the Toy Story films?


Ex Input:
What kind of wood is a stradivarius violin made of?

Ex Output:

What kind of wood is used for the top of a Stradivarius violin?