Question: who won the 100 meter dash in the 2016 olympics
[{'answer': 'Usain Bolt', 'provenance': [{'wikipedia_id': '45151184', 'title': "Athletics at the 2016 Summer Olympics – Men's 100 metres", 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Summary.\n'}]}]