Question: who was the dolphins qb when they went undefeated
[{'answer': 'Bob Griese', 'provenance': [{'wikipedia_id': '14202514', 'title': '1972 Miami Dolphins season', 'start_paragraph_id': 1, 'start_character': 274, 'end_paragraph_id': 1, 'end_character': 284, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'was replaced by veteran Earl Morrall'}, {'provenance': [{'wikipedia_id': '14202514', 'title': '1972 Miami Dolphins season', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 824, 'bleu_score': 0.986253478180058, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15563739809513117887}, 'section': 'Section::::Abstract.'}]}]