Question: who did boston beat in the 2004 world series
[{'answer': 'St. Louis Cardinals', 'provenance': [{'wikipedia_id': '1088360', 'title': '2004 World Series', 'start_paragraph_id': 1, 'start_character': 261, 'end_paragraph_id': 1, 'end_character': 280, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]