TASK DEFINITION: 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.
PROBLEM: Questions: ["when is jason bieber's birthday?"]

SOLUTION: 1994-03-01

PROBLEM: Questions: ['when did the first super man come out?']

SOLUTION: 1978

PROBLEM: Questions: ['what year did vladimir lenin find the soviet union?', 'what year did vladimir lenin become the leader of the soviet union?']

SOLUTION:
1917