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.

[EX Q]: Questions: ['when did barrack obama president was it 2009 or 2008?', 'at what time barack obama become us president?']
[EX A]: 2009-01-20

[EX Q]: Questions: ['when was marilyn monroe first married?']
[EX A]: 1942-06-19

[EX Q]: Questions: ['what year was it when the first two people walked on the moon?', 'in what year was the first moon walk?', 'what year was the first mad to walk on the moon?']
[EX A]:
1969