Question: who won the dell match play golf tournament
[{'answer': 'Dustin Johnson', 'provenance': [{'wikipedia_id': '51334286', 'title': '2017 WGC-Dell Technologies Match Play', 'start_paragraph_id': 1, 'start_character': 191, 'end_paragraph_id': 1, 'end_character': 205, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51334286', 'title': '2017 WGC-Dell Technologies Match Play', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 238, 'bleu_score': 0.8780099567239781, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3682107816403803339}, 'section': 'Section::::Abstract.'}]}]