Question: a roman engineering device used to carry water over long distances is called an
[{'answer': 'Aqueduct', 'provenance': [{'wikipedia_id': '3745201', 'title': 'Roman aqueduct', 'start_paragraph_id': 1, 'start_character': 136, 'end_paragraph_id': 1, 'end_character': 144, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3745201', 'title': 'Roman aqueduct', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 283, 'bleu_score': 0.879013194440847, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11110338059670106404}, 'section': 'Section::::Abstract.'}]}]