Question: when did taylor swift love story come out
[{'answer': 'September 12 , 2008', 'provenance': [{'wikipedia_id': '19278671', 'title': 'Love Story (Taylor Swift song)', 'start_paragraph_id': 32, 'start_character': 23, 'end_paragraph_id': 32, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Music video.:Video reception.\n'}]}, {'provenance': [{'wikipedia_id': '19278671', 'title': 'Love Story (Taylor Swift song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 791, 'bleu_score': 0.8884870346127931, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15230588224760066506}, 'section': 'Section::::Abstract.'}]}]