Question: when did mine that bird win the kentucky derby
[{'answer': '2009', 'provenance': [{'wikipedia_id': '22657864', 'title': 'Mine That Bird', 'start_paragraph_id': 1, 'start_character': 258, 'end_paragraph_id': 1, 'end_character': 262, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22657864', 'title': 'Mine That Bird', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 798, 'bleu_score': 0.937019127799618, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13949306249744906647}, 'section': 'Section::::Abstract.'}]}]