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.

When was daylight saving introduced in new zealand?
When was daylight saving first introduced in new zealand?

Where does lymph fluid drain in order to go back into the cardiovascular system?
Which veins does lymph fluid drain in order to go back into the cardiovascular system?

Who was the port to port killer on ncis?

Who was the Port-to-Port Killer on NCIS?