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 did the astros last play in the world series?

Ex Output:
When did the Astros play in the World Series for the first time?


Ex Input:
Who wanted to create a railroad from cape town to cairo?

Ex Output:
Who wanted to create a railroad from cape town to cairo originally?


Ex Input:
When was the old 7 mile bridge built?

Ex Output:

Over what period was the old 7 mile bridge built?