In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.
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Question: When did royal mail and post office split?

Answer: 1 April 2012


Question: Yellowstone national park includes parts of idaho montana and?

Answer: Wyoming


Question: In which year india become the member of un?

Answer:
1945