Question: who won the national championship college football 2017
[{'answer': 'Clemson Tigers', 'provenance': [{'wikipedia_id': '44628927', 'title': '2017 College Football Playoff National Championship', 'start_paragraph_id': 2, 'start_character': 106, 'end_paragraph_id': 2, 'end_character': 120, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '44628927', 'title': '2017 College Football Playoff National Championship', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 465, 'bleu_score': 0.9408228243926111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14481772430405422270}, 'section': 'Section::::Abstract.'}]}]