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 bob dylan release his first album?']
1962-03-19

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

Questions: ['who was katherine paterson husband?', 'katherine paterson husband name?', "who is katherine paterson's husband?"]

john barstow paterson