Question: who has won the 2016 miami open men’s singles title
[{'answer': 'Novak Djokovic', 'provenance': [{'wikipedia_id': '49698523', 'title': '2016 Miami Open', 'start_paragraph_id': 136, 'start_character': 12, 'end_paragraph_id': 136, 'end_character': 26, 'bleu_score': 1.0, 'section': "Section::::Champions.:Men's Singles.\n"}]}]