Question: who won the 1984 national championship in football
[{'answer': 'BYU Cougars', 'provenance': [{'wikipedia_id': '4847614', 'title': '1984 NCAA Division I-A football season', 'start_paragraph_id': 1, 'start_character': 58, 'end_paragraph_id': 1, 'end_character': 69, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]