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.

[Q]: Questions: ['when was john adams the vice president?', 'when was john adams elected vice president?', 'when was john adams elected for vice president?']
[A]: 1789-04-21

[Q]: Questions: ['when was bruce rowland born?', 'which date was pleasant rowland born?', 'when was pleasant rowland born?', "what is pleasant rowland's birthday?"]
[A]: 1941-05-23

[Q]: Questions: ['justin bieber birthday is?']
[A]:
1994-03-01