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 the birthday of justin bieber?']

SOLUTION: 1994-03-01

PROBLEM: Questions: ['what year and month did barack obama get elected?', 'when was barack obama elected?', 'what year did barack obama get elected as president?']

SOLUTION: 2008

PROBLEM: Questions: ["who's frank lucas jr's mother?"]

SOLUTION:
mahalee