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 is the last time the bruins won the stanley cup?', 'when did the bruins win the stanley cup last?', 'when the last time boston bruins won the stanley cup?', 'when did the boston bruins win their last stanley cup?', 'when did boston last win stanley cup?', 'when did the boston last win the stanley cup?']
A:
2011