Question: who quarterbacked the minnesota vikings the year they won 15 games
[{'answer': 'Randall Cunningham', 'provenance': [{'wikipedia_id': '9568773', 'title': '1998 Minnesota Vikings season', 'start_paragraph_id': 2, 'start_character': 83, 'end_paragraph_id': 2, 'end_character': 101, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '9568773', 'title': '1998 Minnesota Vikings season', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 534, 'bleu_score': 0.944515869221328, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10867313590836864420}, 'section': 'Section::::Regular season.\n'}]}]