Question: who won defensive player of the year nfl 2016
[{'answer': 'Khalil Mack', 'provenance': [{'wikipedia_id': '38376593', 'title': 'National Football League Defensive Player of the Year Award', 'start_paragraph_id': 67, 'start_character': 7, 'end_paragraph_id': 67, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Sporting News.\n'}]}]