Question: when did todd frazier won the homerun derby
[{'answer': '2015', 'provenance': [{'wikipedia_id': '11655510', 'title': 'Todd Frazier', 'start_paragraph_id': 20, 'start_character': 15, 'end_paragraph_id': 20, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Professional career.:Cincinnati Reds.\n'}]}]