Question: where did the rat pack play in vegas
[{'answer': 'The Sands Hotel and Casino', 'provenance': [{'wikipedia_id': '1460540', 'title': 'Sands Hotel and Casino', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1460540', 'title': 'Sands Hotel and Casino', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 427, 'bleu_score': 0.906494085248945, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13245253035760249256}, 'section': 'Section::::Abstract.'}]}]