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.

Questions: ['when did madonna get her grammy?']
1992

Questions: ['who did selena gomez play on hannah montana?']
mikayla

Questions: ['what year did martin luther king get his doctorate degree from boston university?', 'what year did martin luther king jr get his doctorate degree from boston university?', 'when did martin luther king get his doctorate degree from boston?']

1955