Question: who won the cfp national championship last year
[{'answer': 'Alabama', 'provenance': [{'wikipedia_id': '38482619', 'title': 'College Football Playoff', 'start_paragraph_id': 22, 'start_character': 144, 'end_paragraph_id': 22, 'end_character': 151, 'bleu_score': 1.0, 'section': 'Section::::Impact on scheduling.\n'}]}]