Question: who was killed at the gunfight at the ok corral
[{'answer': 'Billy Clanton', 'provenance': [{'wikipedia_id': '64211', 'title': 'Gunfight at the O.K. Corral', 'start_paragraph_id': 1, 'start_character': 430, 'end_paragraph_id': 1, 'end_character': 443, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Tom and Frank McLaury', 'provenance': [{'wikipedia_id': '64211', 'title': 'Gunfight at the O.K. Corral', 'start_paragraph_id': 1, 'start_character': 449, 'end_paragraph_id': 1, 'end_character': 470, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '64211', 'title': 'Gunfight at the O.K. Corral', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 1019, 'bleu_score': 0.597490939233646, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 624157020224885681}, 'section': 'Section::::Abstract.'}]}]