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 did london came the first capital city?', 'when did london become the capital city?', 'what year did london become capital of britain?']

SOLUTION: 11xx

PROBLEM: Questions: ['what was the population of the us on july 1 1945?']

SOLUTION: 139,928,165

PROBLEM: Questions: ['what is tyler perry mothers name?', 'what is tyler perry mom name?', "who is tyler perry's mother?", 'who is the mother of tyler perry?']

SOLUTION:
willie maxine perry