Question: when did the swine flu vaccine come out
[{'answer': 'November 2009', 'provenance': [{'wikipedia_id': '23224587', 'title': '2009 flu pandemic vaccine', 'start_paragraph_id': 1, 'start_character': 514, 'end_paragraph_id': 1, 'end_character': 527, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23224587', 'title': '2009 flu pandemic vaccine', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 527, 'bleu_score': 0.9346183847893801, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 327890706459223118}, 'section': 'Section::::Abstract.'}]}]