Question: who defended a bridge when rome was under attack
[{'answer': 'Publius Horatius Cocles', 'provenance': [{'wikipedia_id': '85374', 'title': 'Horatius Cocles', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '85374', 'title': 'Horatius Cocles', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 251, 'bleu_score': 0.809889592710031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6683822758088591338}, 'section': 'Section::::Abstract.'}]}]