Question: who ran 50 marathons in 50 days in 50 states
[{'answer': 'Karnazes', 'provenance': [{'wikipedia_id': '1653558', 'title': 'Dean Karnazes', 'start_paragraph_id': 0, 'start_character': 5, 'end_paragraph_id': 0, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1653558', 'title': 'Dean Karnazes', 'start_paragraph_id': 32, 'start_character': 0, 'end_paragraph_id': 32, 'end_character': 766, 'bleu_score': 0.945741377651485, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15562067678648046304}, 'section': 'Section::::Racing highlights and criticisms.:50 marathons in 50 states on 50 consecutive days.\n'}]}]