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.

Input: Consider Input: Questions: ['when did mary shelley write frankenstine?', 'when did shelley write frankenstein?', 'when was frankenstein written by mary shelley?', 'what year did mary sheeley write frankenstein?']

Output: 1818

Input: Consider Input: Questions: ['what age was obama when he went to harvard university?']

Output: 27 years

Input: Consider Input: Questions: ['when was serbia its own country?']
Output: 2006-06-05