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.
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Question: In which year india's capital shifted from calcutta to delhi?

Answer: Which year was it announced that India's capital would shift from Calcutta to Delhi?


Question: Where is the billboard music awards 2017 held?

Answer: What venue is the billboard music awards 2017 held in?


Question: When did japan send cherry trees to washington dc?

Answer:
When did japan's government send 2,000 cherry trees to washington dc?