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.

How many days does it take an embryo to implant?
How many days does it most likely take for a human embryo to implant?

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

Who is the current head of the department of justice?

What official is always the head of the US Department of Justice?