Question: how many floors does the aria las vegas have
[{'answer': '61', 'provenance': [{'wikipedia_id': '22724379', 'title': 'Aria Resort and Casino', 'start_paragraph_id': 2, 'start_character': 13, 'end_paragraph_id': 2, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22724379', 'title': 'Aria Resort and Casino', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 507, 'bleu_score': 0.976327165973018, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10261243309338899165}, 'section': 'Section::::Design and facilities.\n'}]}]