Given a question and its paraphrases, answer the question. The answer should exactly answer all the questions given without any ambiguity. Don't give partial answers.

Q: Questions: ["what was barack obama's age when he married michelle obama?"]

A: 31 years
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Q: Questions: ['when did canada join the unite nations?']

A: 1945-10-24
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Q: Questions: ['what is the population of students that attend usc?']

A:
44,000
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