Question: when did the new orleans saints win the superbowl
[{'answer': 'February 7 , 2010', 'provenance': [{'wikipedia_id': '1406500', 'title': 'Super Bowl XLIV', 'start_paragraph_id': 1, 'start_character': 512, 'end_paragraph_id': 1, 'end_character': 529, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1406500', 'title': 'Super Bowl XLIV', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 575, 'bleu_score': 0.8809147538185351, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1317407233320353630}, 'section': 'Section::::Abstract.'}]}]