Question: when is the baseball home run derby 2018
[{'answer': 'July 16 , 2018', 'provenance': [{'wikipedia_id': '54521992', 'title': '2018 Major League Baseball Home Run Derby', 'start_paragraph_id': 1, 'start_character': 155, 'end_paragraph_id': 1, 'end_character': 169, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]