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.
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Question: Questions: ['when did kristen stewart and robert pattinson start dating?']

Answer: 2008


Question: Questions: ['date of japen joining the united nation?']

Answer: 1956


Question: Questions: ['when did the first satellite land on mars?']

Answer:
1971-05-30