Question: horseshoe arches were an important architectural feature of the
[{'answer': 'Moorish architecture', 'provenance': [{'wikipedia_id': '20002787', 'title': 'Horseshoe arch', 'start_paragraph_id': 1, 'start_character': 148, 'end_paragraph_id': 1, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20002787', 'title': 'Horseshoe arch', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 226, 'bleu_score': 0.943604326170661, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16572981157103436092}, 'section': 'Section::::Abstract.'}]}]