Question: who won nathan's hot dog eating contest
[{'answer': 'Joey Chestnut', 'provenance': [{'wikipedia_id': '766904', 'title': "Nathan's Hot Dog Eating Contest", 'start_paragraph_id': 2, 'start_character': 99, 'end_paragraph_id': 2, 'end_character': 112, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '766904', 'title': "Nathan's Hot Dog Eating Contest", 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 205, 'bleu_score': 0.5869869488746441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17315768806915442935}, 'section': 'Section::::Abstract.'}]}]