instruction:
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.
question:
When did the draft start for vietnam war?
answer:
When did the first lottery for the draft start for the vietnam war?


question:
When is diving on in the commonwealth games?
answer:
When is diving on in the 2018 commonwealth games?


question:
When was the last time the yankees and the dodgers played in a world series?
answer:

As of 2017, when was the last time the yankees and Dodgers played in the world Series?