Question: when did the red sox sweep the world series
[{'answer': 'The 2004 World Series', 'provenance': [{'wikipedia_id': '1088360', 'title': '2004 World Series', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]