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.

What type of breed is an american bulldog?
What size breed is an american bulldog?

When did the earth and solar system form?
When did the Solar System form?

When does boy in the striped pajamas take place?

During what period does the Boy in the Striped Pajamas take place?